This is a list of communities that are noteworthy or interesting and which either appear on this wiki, or should appear here.
- The WELL
- AOL
- Usenet
- Change.org
- MomsRising
- Tribe.net
- Orkut
- MySpace
- Wikipedia
- 4chan
- Slashdot
- Digg
- Metafilter
- Stack Overflow
- Get Satisfaction
- Instructables
- Alcoholics Anonymous
- Toastmasters
- Society for Creative Anachronism
- LibraryThing
- Couchsurfing.net
- Engineering Leaders Community