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@@ -72,10 +72,11 @@ A curated list of awesome Game Boy (Color) Development resources, tools, docs, r
 
 ## Documentation
 
-- [Game Boy Programming Manual](https://archive.org/download/GameBoyProgManVer1.1/GameBoyProgManVer1.1.pdf) - **Official** Game Boy programming and hardware manual by Nintendo. Pretty much everything in the console is covered and explained.
-- [The Cycle-Accurate Game Boy Docs](https://github.com/AntonioND/giibiiadvance/blob/master/docs/TCAGBD.pdf) - A precise documentation by AntonioND to make a cycle-accurate Game Boy emulator.
-- [Complete Technical Reference](https://gekkio.fi/files/gb-docs/gbctr.pdf)
+- [Game Boy Programming Manual](https://archive.org/download/GameBoyProgManVer1.1/GameBoyProgManVer1.1.pdf) - **Official** Game Boy programming and hardware manual by Nintendo.
 - [Pan Docs](http://gbdev.gg8.se/wiki/articles/Pan_Docs) - Historical comprehensive technical reference, wikified, corrected and updated. [Original](http://bgb.bircd.org/pandocs.htm) version.
+- [The Cycle-Accurate Game Boy Docs](https://github.com/AntonioND/giibiiadvance/blob/master/docs/TCAGBD.pdf) - A precise documentation by AntonioND to make a cycle-accurate Game Boy emulator.
+- [Complete Technical Reference](https://gekkio.fi/files/gb-docs/gbctr.pdf) by Gekkio.
+- [Open Game Boy Documentation Project](https://mgba-emu.github.io/gbdoc/)
 - [Game Boy CPU Manual](http://marc.rawer.de/Gameboy/Docs/GBCPUman.pdf) - Assembly language commands, timings and opcodes.
 - [RGBDS Documentation](https://rednex.github.io/rgbds/)
 - [GBDK libraries documentation](http://gbdk.sourceforge.net/doc/gbdk-doc.pdf)
@@ -136,7 +137,7 @@ A curated list of awesome Game Boy (Color) Development resources, tools, docs, r
 
 - [AntonioND's docs](https://github.com/AntonioND/giibiiadvance/tree/master/docs) - Corrected schematics and infos on cartridge header data.
 - [Gekkio's Game Boy cartridge types](http://gekkio.fi/blog/2015-02-14-mooneye-gb-gameboy-cartridge-types.html) - An overview on existing cartridge types.
-- [Gekkio](http://gekkio.fi/blog/)'s cartridge analysis - [DMG-BEAN-02](http://gekkio.fi/blog/2015-05-18-mooneye-gb-cartridge-analysis-dmg-bean-02.html), [MBC1](http://gekkio.fi/blog/2015-05-17-mooneye-gb-cartridge-analysis-fortress-of-fear.html), [no MBC](http://gekkio.fi/blog/2015-02-28-mooneye-gb-cartridge-analysis-tetris.html)
+- Gekkio's cartridge analysis - [DMG-BEAN-02](http://gekkio.fi/blog/2015-05-18-mooneye-gb-cartridge-analysis-dmg-bean-02.html), [MBC1](http://gekkio.fi/blog/2015-05-17-mooneye-gb-cartridge-analysis-fortress-of-fear.html), [no MBC](http://gekkio.fi/blog/2015-02-28-mooneye-gb-cartridge-analysis-tetris.html)
 - [Game Boy Cartridges Schematics](http://www.devrs.com/gb/files/gb.html) - Schematics for MBC2 and MBC3 types.
 - [Cartridges PCB photos](https://imgur.com/a/D5bpC)
 - [Reiner Ziegler's Game Boy page](http://reinerziegler.de.mirrors.gg8.se/) - Commercial and homemade programmable cartridges and programming systems. Tutorials, wiring and schematics provided.
@@ -220,6 +221,7 @@ A curated list of awesome Game Boy (Color) Development resources, tools, docs, r
 - [wla-dx](https://github.com/vhelin/wla-dx) - Yet Another GB-Z80/Z80/.. Multi Platform Cross Assembler Package.
 
 #### Experimentals/Proof of Concepts
+- [gbforth](https://github.com/ams-hackers/gbforth) - A Forth-based Game Boy development kit.
 - [gbasm](https://github.com/BonsaiDen/gbasm) - A JavaScript based compiler for Game Boy z80 assembly code.
 - [tniASM](http://www.tni.nl/products/tniasm.html) - Macro Assembler.
 - [Assembler](https://github.com/ulrikdamm/Assembler) - Assembler written in Swift.
@@ -440,7 +442,8 @@ A curated list of awesome Game Boy (Color) Development resources, tools, docs, r
 - [GBVisualizer](https://github.com/LIJI32/GBVisualizer) - Demonstrating the use of two undocumented Game Boy Color registers, nicknamed PCM12 (FF76) and PCM34 (FF77), which can be used to read the current PCM amplitude of the 4 APU channels.
 - [GBVideoPlayer](https://github.com/LIJI32/GBVideoPlayer) - A technical demo demonstrating how the Game Boy LCD controller can be hacked to make a Game Boy Color play a full motion video in color, together with music.
 - [ArduinoGameBoy](https://github.com/drhelius/arduinogameboy) - Arduino based Game Boy cartridge reader and writer.
-- [gameboy-brainfuck](https://github.com/bitnenfer/gameboy-brainfuck) - Implementation of a brainfuck interpreter.
+- [gameboy-brainfuck](https://github.com/bitnenfer/gameboy-brainfuck) - Brainf*ck interpreter.
+- [gbfk](https://github.com/elseyf/gbfk) - Brainf*ck interpreter, with input.
 - [gb-save-states](https://github.com/mattcurrie/gb-save-states) - Patches to add save state support to Game Boy games when playing on the original hardware.
 - [gbcpu](https://github.com/jdeblese/gbcpu) - A CPU and peripherals implementing the Game Boy instruction set and functionality.
 - [Digitized Speech in Game Boy Games](https://youtube.com/watch?v=1lzHfLYzyRM)