43 Folders - join
Lifehacks, productivity tricks, and OSX tips. Cousin of 43Folders.com by Merlin Mann.
Low activity, 4987 members

MyLifeOrganized - join
Discuss forum of My Life Organized application www.mylifeorganized.net New posters on this forum are moderated and as such postings will take time to appear. The moderators all have full time jobs and aren't always sitting front of a computer. Please have patience and don't post multiple times.
Medium activity, 2472 members

GTD TiddlyWiki - join
General area for reporting bugs, tips, and comments about doing GTD via TiddlyWiki.
Low activity, 1595 members