Currently most of WirelessCommunities around the world are using mailing lists to organize themselves and work on projects. A few in the North West are also using WikiWikiWeb to work on collaborative documentation. Here is the list of all the wireless mailing lists and community mailing lists that I know of. You can find more specific information on the lists hosted by PersonalTelco on the MailingList page.
1. Ashland's Wireless Internet Project
awip-list @ truffula.net Info/Subscribe Archives
2. Austin Wireless
3. Australia
wireless @ lists.samba.org Info/Subscribe Archives
melbwireless @ melbwireless.dyndns.org Info/Subscribe/Archives
4. BAWUG
bsd-wireless @ lists.bawug.org Info/Subscribe Archives
wireless @ lists.bawug.org Info/Subscribe Archives
5. BC Wireless
6. Consume the Net
Last I checked all the archives were very out of data ...
consume-resources @ lists.consume.net Subscribe
7. ISP-Planet
8. Lariat (http://www.lariat.org/)
community-bb @ lists.topica.com Info/Subscribe Archives
9. No Cat
10. NoVA Wireless
rfmon @ novawireless.org Info/Subscribe Archives
11. NYC Wireless
nycwireless @ lists.nycwireless.net Info/Subscribe Archives
nycw-announce @ lists.nycwireless.net Info/Subscribe Archives
12. PersonalTelco
announce @ lists.personaltelco.net Info/Subscribe Archives
general @ lists.personaltelco.net Info/Subscribe Archives from 0 - 03/04 Archives from 03/04-
13. PublicAirport
PublicAirport is for Apple Airport users to discuss public access to personal Base Stations.
To Subscribe Send e-mail to [publicairport-request@ordersomewherechaos.com] with the text "subscribe" in the body.
14. SeattleWireless
Info on all of their lists.
announce @ seattlewireless.net Subscribe
15. Twin Cities Linux User's Group
http://www.tcwug.org is a new User's Group in the Minneapolis/St. Paul area. Started by a couple members of the local Linux User's Group.