diff --git a/README.md b/README.md
index 70f8ba3..99c207d 100644
--- a/README.md
+++ b/README.md
@@ -93,7 +93,7 @@ If you aim to develop your software for SGB or GBC, or you want to know how it r
 
 #### Cheatsheets, Tables
 
-- [Game Boy Crib Sheet](http://gbdev.gg8.se/files/docs/GBCribSheet000129.pdf) - A handy printable reference sheet with ASM opcodes, memory locations, and much more.
+- [Game Boy Crib Sheet](https://github.com/JustinLloyd/Gameboy-Cribsheet/raw/master/Current%20Release/Gameboy%20Crib%20Sheet%20990823-0325.pdf) - A handy printable reference sheet with ASM opcodes, memory locations, and much more ([repository](https://github.com/JustinLloyd/Gameboy-Cribsheet)).
 - [OP Codes cheatsheet](http://pastraiser.com/cpu/gameboy/gameboy_opcodes.html)
 - [rednex gbz80 opcode reference](https://rednex.github.io/rgbds/gbz80.7.html)
 - [Opcode table](http://goldencrystal.free.fr/GBZ80Opcodes.pdf)
@@ -212,6 +212,7 @@ If you aim to develop your software for SGB or GBC, or you want to know how it r
 - [Retr0 GB](https://bitbucket.org/HellSuffering/retr0-gb/) - An engine for creating games (expands GBDK).
 - [awake](https://github.com/devdri/awake) - Gameboy decompiler.
 - [swapdump](https://github.com/sanqui/swapdump) - Diagnostic utility for Game Boy flashcarts.
+- [Gameboy-LinkUp](https://github.com/JustinLloyd/Gameboy-LinkUp) - Gameboy LinkUp serial cable networking project.
 
 
 #### Syntax highlighting packages