User Groups
User groups are places where you can meet like-minded wireless enthusiasts and share knowledge on wireless topics. The great thing about a user group is that you can almost always find somebody else who's tried to do what you are attempting and who's come across similar problems to ones that you may be facing.
Here are some sites where you can find a user group near you:
Also, be sure to check out some of my favorites:
San Diego Wireless Users Group: http://www.sdwug.org
Bay Area Wireless Users Group: http://www.bawug.org
NYC Wireless: http://www.nycwireless.net
Seattle Wireless: http://www.seattlewireless.net
Personal Telco: http://www.personaltelco.net
Free Networks: http://www.freenetworks.org
Nova Wireless: http://www.novawireless.org
Airshare: http://www.airshare.org
Southern California Wireless Users Group: http://www.socalwug.org