diff --git a/package-lock.json b/package-lock.json
index 0c0708a..02db5ea 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4879,9 +4879,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.10",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.10.tgz",
-      "integrity": "sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==",
+      "version": "4.17.11",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
+      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
       "dev": true
     },
     "lodash._baseclone": {
@@ -5247,6 +5247,12 @@
         "minimist": "0.0.8"
       }
     },
+    "moment": {
+      "version": "2.23.0",
+      "resolved": "https://registry.npmjs.org/moment/-/moment-2.23.0.tgz",
+      "integrity": "sha512-3IE39bHVqFbWWaPOMHZF98Q9c3LDKGTmypMiTM2QygGXXElkFWIH7GxfmlwmY2vwa+wmNsoYZmG2iusf1ZjJoA==",
+      "dev": true
+    },
     "ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
diff --git a/package.json b/package.json
index 60cecf5..91bb44e 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,10 @@
     "extract-text-webpack-plugin": "^3.0.2",
     "hammerjs": "^2.0.8",
     "html-webpack-plugin": "^2.28.0",
+    "lodash": "^4.17.11",
+    "moment": "^2.23.0",
     "node-sass": "^4.5.3",
+    "prop-types": "^15.6.2",
     "react": "^16.6.3",
     "regenerator-runtime": "^0.12.0",
     "relaks": "^1.1.7",
diff --git a/src/main.js b/src/main.js
index 39162d5..ba2ebf9 100644
--- a/src/main.js
+++ b/src/main.js
@@ -13,6 +13,10 @@ if (typeof(window) === 'object') {
     async function initialize(evt) {
         // create data source
         let host = `${location.protocol}//${location.host}`;
+        if (process.env.NODE_ENV !== 'production' && process.env.WEBPACK_DEV_SERVER) {
+            // use hardcoded URL when we're running in dev-server
+            host = 'http://localhost:8000';
+        }
         let dataSource = new WordpressDataSource({
             baseURL: `${host}/wp-json`,
         });
@@ -31,10 +35,13 @@ if (typeof(window) === 'object') {
         if (!appContainer) {
             throw new Error('Unable to find app element in DOM');
         }
-        //let ssrElement = createElement(FrontEnd, { dataSource, routeManager, ssr: 'hydrate' });
-        //let seeds = await harvest(ssrElement, { seeds: true });
-        //Relaks.set('seeds', seeds);
-        //hydrate(ssrElement, appContainer);
+        // expect SSR unless we're running in dev-server
+        if (!(process.env.NODE_ENV !== 'production' && process.env.WEBPACK_DEV_SERVER)) {
+            let ssrElement = createElement(FrontEnd, { dataSource, routeManager, ssr: 'hydrate' });
+            let seeds = await harvest(ssrElement, { seeds: true });
+            Relaks.set('seeds', seeds);
+            hydrate(ssrElement, appContainer);
+        }
 
         let appElement = createElement(FrontEnd, { dataSource, routeManager });
         render(appElement, appContainer);
diff --git a/src/style.scss b/src/style.scss
index d46f609..9169f20 100644
--- a/src/style.scss
+++ b/src/style.scss
@@ -18,12 +18,6 @@ BODY {
 A {
     &:link, &:visited {
         text-decoration: none;
-        color: #000;
-    }
-
-    &:hover {
-        text-decoration: underline;
-        color: #f11;
     }
 }
 
@@ -35,6 +29,30 @@ A {
     bottom: 0;
     background-color: #66023c;
     overflow: hidden;
+    color: #cccccc;
+
+    A {
+        color: #cccccc;
+    }
+
+    .archive {
+        LI {
+            margin-top: 0.1em;
+            margin-bottom: 0.1em;
+        }
+
+        .year {
+            cursor: pointer;
+        }
+
+        .months {
+            overflow: hidden;
+
+            &.collapsed {
+                height: 0;
+            }
+        }
+    }
 }
 
 .top-nav {
@@ -44,6 +62,10 @@ A {
     width: calc(100% - 18em);
     background-color: #990000;  // prevent visual glitch in Android
 
+    A {
+        color: #cccccc;
+    }
+
     .title-bar {
         display: flex;
         align-items: center;
diff --git a/src/widgets/side-nav.jsx b/src/widgets/side-nav.jsx
index 32a776d..50fc90c 100644
--- a/src/widgets/side-nav.jsx
+++ b/src/widgets/side-nav.jsx
@@ -1,5 +1,105 @@
+import _ from 'lodash';
+import Moment from 'moment';
 import React, { PureComponent } from 'react';
 import { AsyncComponent } from 'relaks';
+import { Route } from 'routing';
+import WordPress from 'wordpress';
+
+class SideNav extends AsyncComponent {
+    static displayName = 'SideNav';
+
+    constructor(props) {
+        super(props);
+        let { route } = this.props;
+        let selectedYear;
+        if (route.params.month) {
+            selectedYear = parseInt(route.params.month.substr(0, 4));
+        } else {
+            selectedYear = Moment().year();
+        }
+        this.state = {
+            selectedYear
+        };
+    }
+
+    async renderAsync(meanwhile) {
+        let { wp, route } = this.props;
+        let { selectedYear } = this.state;
+        let props = {
+            route,
+            selectedYear,
+            onYearSelect: this.handleYearSelect,
+        };
+        meanwhile.delay(50, 50);
+        meanwhile.show(<SideNavSync {...props} />);
+        props.categories = await wp.fetchList('/wp/v2/categories/');
+        meanwhile.show(<SideNavSync {...props} />);
+
+        // get the latest post and the earliest post
+        let latestPosts =  await wp.fetchList('/wp/v2/posts/');
+        let latestPost = _.first(latestPosts);
+        let earliestPosts = await wp.fetchList(`/wp/v2/posts/?order=asc&per_page=1`)
+        let earliestPost = _.first(earliestPosts);
+
+        // build the archive tree
+        props.archive = [];
+        if (latestPost && earliestPost) {
+            let lastMonthEnd = Moment(latestPost.date_gmt).endOf('month');
+            let firstMonthStart = Moment(earliestPost.date_gmt).startOf('month');
+            let currentYearEntry;
+            // loop from the last month to the first
+            let e = lastMonthEnd.clone();
+            let s = e.clone().startOf('month');
+            while (s >= firstMonthStart) {
+                let year = s.year();
+                let month = s.month() + 1;
+                if (!currentYearEntry || currentYearEntry.year !== year) {
+                    // start a new year
+                    currentYearEntry = {
+                        year,
+                        label: s.format('YYYY'),
+                        months: []
+                    };
+                    props.archive.push(currentYearEntry);
+                }
+                let monthEntry = {
+                    month,
+                    label: s.format('MMMM'),
+                    slug: s.format('YYYY-MM'),
+                    post: undefined,
+                    start: s.clone(),
+                    end: e.clone(),
+                 };
+                currentYearEntry.months.push(monthEntry);
+
+                e.subtract(1, 'month');
+                s.subtract(1, 'month');
+            }
+            meanwhile.show(<SideNavSync {...props} />);
+
+            // load the posts of the selected year
+            for (let yearEntry of props.archive) {
+                if (yearEntry.year === selectedYear) {
+                    for (let monthEntry of yearEntry.months) {
+                        let before = monthEntry.end.toISOString();
+                        let after = monthEntry.start.toISOString();
+                        let url = `/wp/v2/posts/?before=${before}&after=${after}`;
+                        monthEntry.posts = await wp.fetchList(url);
+
+                        // force prop change
+                        props.archive = _.clone(props.archive);
+                        meanwhile.show(<SideNavSync {...props} />);
+                    }
+                }
+            }
+        }
+        return <SideNavSync {...props} />;
+    }
+
+    handleYearSelect = (evt) => {
+        this.setState({ selectedYear: evt.year });
+    }
+}
 
 class SideNavSync extends PureComponent {
     static displayName = 'SideNavSync';
@@ -7,13 +107,128 @@ class SideNavSync extends PureComponent {
     render() {
         return (
             <div className="side-nav">
-                Side-Nav
+                {this.renderCategories()}
+                {this.renderArchive()}
             </div>
         )
     }
+
+    renderCategories() {
+        let { categories } = this.props;
+        if (!categories) {
+            return null;
+        }
+        // don't show categories with no post
+        categories = _.filter(categories, 'count');
+        // list category with more posts first
+        categories = _.orderBy(categories, [ 'count', 'name' ], [ 'desc', 'asc' ]);
+        return (
+            <ul className="categories">
+            {
+                categories.map((category, i) => {
+                    return this.renderCategory(category, i);
+                })
+            }
+            </ul>
+        )
+    }
+
+    renderCategory(category, i) {
+        let name = _.get(category, 'name', '');
+        let description = _.get(category, 'description', '');
+        let slug = _.get(category, 'slug', '');
+        let url = '';
+        return (
+            <li key={i}>
+                <a href={url} title={description}>{name}</a>
+            </li>
+        );
+    }
+
+    renderArchive() {
+        let { archive } = this.props;
+        if (!archive) {
+            return null;
+        }
+        return (
+            <ul className="archive">
+            {
+                archive.map((entry, i) => {
+                    return this.renderYear(entry, i);
+                })
+            }
+            </ul>
+        );
+    }
+
+    renderYear(yearEntry, i) {
+        let { selectedYear } = this.props;
+        let labelClass = 'year';
+        let listClass = 'months';
+        if (yearEntry.year === selectedYear) {
+            labelClass += ' selected';
+        } else {
+            listClass += ' collapsed';
+        }
+        return (
+            <li key={i}>
+                <span className={labelClass} data-year={yearEntry.year} onClick={this.handleYearClick}>
+                    {yearEntry.label}
+                </span>
+                <ul className={listClass}>
+                {
+                    yearEntry.months.map((entry, i) => {
+                        return this.renderMonth(entry, i);
+                    })
+                }
+                </ul>
+            </li>
+        )
+    }
+
+    renderMonth(monthEntry, i) {
+        let url;
+        if (!_.isEmpty(monthEntry.posts) || _.isUndefined(monthEntry.posts)) {
+            url = '#';
+        }
+        return (
+            <li key={i}>
+                <a href={url}>{monthEntry.label}</a>
+            </li>
+        );
+    }
+
+    handleYearClick = (evt) => {
+        let { onYearSelect } = this.props;
+        let year = parseInt(evt.currentTarget.getAttribute('data-year'));
+        if (onYearSelect) {
+            onYearSelect({
+                type: 'yearselect',
+                target: this,
+                year,
+            });
+        }
+    }
+}
+
+if (process.env.NODE_ENV !== 'production') {
+    const PropTypes = require('prop-types');
+
+    SideNav.propTypes = {
+        wp: PropTypes.instanceOf(WordPress).isRequired,
+        route: PropTypes.instanceOf(Route).isRequired,
+    };
+    SideNavSync.propTypes = {
+        categories: PropTypes.arrayOf(PropTypes.object),
+        archive: PropTypes.arrayOf(PropTypes.object),
+        selectedYear: PropTypes.number,
+        route: PropTypes.instanceOf(Route),
+        onYearSelect: PropTypes.func,
+    };
 }
 
 export {
-    SideNavSync as default,
+    SideNav as default,
+    SideNav,
     SideNavSync,
 };
diff --git a/src/widgets/top-nav.jsx b/src/widgets/top-nav.jsx
index 4fc6324..48945cd 100644
--- a/src/widgets/top-nav.jsx
+++ b/src/widgets/top-nav.jsx
@@ -1,12 +1,32 @@
+import _ from 'lodash';
 import React, { PureComponent } from 'react';
 import { AsyncComponent } from 'relaks';
+import { Route } from 'routing';
+import WordPress from 'wordpress';
 
-class TopBarSync extends PureComponent {
+class TopNav extends AsyncComponent {
+    static displayName = 'TopNav';
+
+    async renderAsync(meanwhile) {
+        let { wp, route } = this.props;
+        let props = {
+            route,
+        };
+        meanwhile.show(<TopNavSync {...props} />);
+        props.system = await wp.fetchOne('/');
+        meanwhile.show(<TopNavSync {...props} />);
+        props.pages = await wp.fetchList('/wp/v2/pages/');
+        return <TopNavSync {...props} />;
+    }
+}
+
+class TopNavSync extends PureComponent {
     static displayName = 'TopNavSync';
 
     render() {
+        let { onMouseOver, onMouseOut } = this.props;
         return (
-            <div className="top-nav">
+            <div className="top-nav" onMouseOver={onMouseOver} onMouseOut={onMouseOut}>
                 {this.renderTitleBar()}
                 {this.renderPageLinkBar()}
                 {this.renderSearchBar()}
@@ -15,34 +35,52 @@ class TopBarSync extends PureComponent {
     }
 
     renderTitleBar() {
+        let { system } = this.props;
+        let name = _.get(system, 'name', '');
+        let description = _.get(system, 'description', '');
         return (
             <div className="title-bar">
-                <div className="title">
+                <div className="title" title={description}>
                     <i className="fa fa-home" />
-                    <span className="site-name">Romanes eunt domus</span>
+                    <span className="site-name">{name}</span>
                 </div>
             </div>
         );
     }
 
     renderPageLinkBar() {
+        let { pages } = this.props;
+        pages = _.sortBy(pages, 'menu_order');
         return (
             <div className="page-bar">
-                <div className="button">
-                    Hello
-                </div>
-                <div className="button">
-                    World
-                </div>
+            {
+                pages.map((page, i) => {
+                    return this.renderPageLinkButton(page, i);
+                })
+            }
+            </div>
+        );
+    }
+
+    renderPageLinkButton(page, i) {
+        let { route } = this.props;
+        let title = _.get(page, 'title.rendered');
+        let slug = _.get(page, 'slug');
+        let url = '';
+        return (
+            <div className="button" key={i}>
+                <a href={url}>{title}</a>
             </div>
         );
     }
 
     renderSearchBar() {
+        let { route } = this.props;
+        let search = _.get(route.params, 'search', '');
         return (
             <div className="search-bar">
                 <span className="input-container">
-                    <input type="text" value="Hello" />
+                    <input type="text" value={search} />
                     <i className="fa fa-search" />
                 </span>
             </div>
@@ -50,7 +88,28 @@ class TopBarSync extends PureComponent {
     }
 }
 
-export {
-    TopBarSync as default,
-    TopBarSync,
+TopNavSync.defaultProps = {
+    system: {},
+    pages: [],
+    search: '',
+};
+
+if (process.env.NODE_ENV !== 'production') {
+    const PropTypes = require('prop-types');
+
+    TopNav.propTypes = {
+        wp: PropTypes.instanceOf(WordPress).isRequired,
+        route: PropTypes.instanceOf(Route).isRequired,
+    };
+    TopNavSync.propTypes = {
+        system: PropTypes.object,
+        pages: PropTypes.arrayOf(PropTypes.object),
+        route: PropTypes.instanceOf(Route).isRequired,
+    };
+}
+
+export {
+    TopNav as default,
+    TopNav,
+    TopNavSync,
 };
diff --git a/webpack.config.js b/webpack.config.js
index d3e2995..45a24e9 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -57,26 +57,9 @@ var clientConfig = {
             analyzerMode: (event === 'build') ? 'static' : 'disabled',
             reportFilename: `report.html`,
         }),
-        new HtmlWebpackPlugin({
-            template: Path.resolve(`./src/index.html`),
-            filename: Path.resolve(`./server/www/index.html`),
-        }),
         new ExtractTextPlugin("styles.css"),
     ],
     devtool: (event === 'build') ? false : 'inline-source-map',
-    devServer: {
-        inline: true,
-        historyApiFallback: {
-            rewrites: [
-                {
-                    from: /.*/,
-                    to: function(context) {
-                        return context.parsedUrl.pathname.replace(/.*\/(.*)$/, '/$1');
-                    }
-                }
-            ]
-        }
-    }
 };
 
 var serverConfig = {
@@ -102,7 +85,39 @@ var serverConfig = {
     devtool: clientConfig.devtool,
 };
 
-var configs = module.exports = clientConfig; //[ clientConfig, serverConfig ];
+var configs = module.exports = [ clientConfig, serverConfig ];
+
+var isDevServer = process.argv.find((arg) => {
+    return arg.includes('webpack-dev-server') ;
+});
+if (isDevServer) {
+    // remove server config
+    configs.pop();
+    // need HTML page
+    clientConfig.plugins.push(new HtmlWebpackPlugin({
+        template: Path.resolve(`./src/index.html`),
+        filename: Path.resolve(`./server/www/index.html`),
+    }));
+    // set constant
+    var constants = {
+        'process.env.WEBPACK_DEV_SERVER': 'true',
+    };
+    clientConfig.plugins.unshift(new DefinePlugin(constants));
+    // config dev-server to support client-side routing
+    clientConfig.devServer = {
+        inline: true,
+        historyApiFallback: {
+            rewrites: [
+                {
+                    from: /.*/,
+                    to: function(context) {
+                        return context.parsedUrl.pathname.replace(/.*\/(.*)$/, '/$1');
+                    }
+                }
+            ]
+        }
+    };
+}
 
 var constants = {};
 if (event === 'build') {
@@ -110,14 +125,13 @@ if (event === 'build') {
 
     configs.forEach((config) => {
         // set NODE_ENV to production
-        var plugins = config.plugins;
         var constants = {
             'process.env.NODE_ENV': '"production"',
         };
-        plugins.unshift(new DefinePlugin(constants));
+        config.plugins.unshift(new DefinePlugin(constants));
 
         // use Uglify to remove dead-code
-        plugins.unshift(new UglifyJSPlugin({
+        config.plugins.unshift(new UglifyJSPlugin({
             uglifyOptions: {
                 compress: {
                   drop_console: true,