List of notable ROM Hacks: http://pastebin.com/ua7u6gZz
Getting started on your own hack: http://pastebin.com/fjGZfMzP

Essentials:
Essentials Wiki: http://pokemonessentials.wikia.com/wiki/Pok%C3%A9mon_Essentials_Wiki
RMXP Tilesets: http://www.mediafire.com/download/sd99pug37y4v4se/Ziddy%27s+DS+Style+Tilesets+RMXP+.rar

Sites for sharing games:
http://www.pokecommunity.com/
http://reliccastle.com/forums/

IRC channel: #/vp/romhack @ irc.synirc.net
Webclient: http://webirc.synirc.net/?channels=/vp/romhack

Topic of the Thread: What generation style will your game be using?