I thought it may be a good idea to point to some of the forums that I find useful in my pursuit of resources that directly relate to wireless. These are forums that may be easily found however I rate the people who post in these forums very highly. I don't think there is a better way to stay upto speed on whats happening in wireless than the collective knowledge of sites like these.
First off is the CWNP website, I rate this site as it is vendor neutral and has a very active forum with some very knowledgeable people there to answer your queries. They also have a certification program that will take you from entry level wireless novice to subject matter expert. I intend to post more on the certifications available within the wireless industry in another post but I rate this highly due to its breadth and depth of coverage.
Secondly there is of course Cisco, although Cisco do all things network related and more their wireless forums are maturing quite nicely with the extension of their wireless certification program. Check out the NetPro forums and the Cisco Learning Network. From within the Learning Network there are also specific stuudy groups for their wireless certification. Again a good resource with very knowledgeable people.
In the interest of fairness many other manufacturers have forums, equally and disappointingly some don't. Below are two additional forums you may wish to check out. I can't comment on them as I have never been on them.