One of the best ways to get educated and to stay up-to-date in the WLAN industry is through the blogs of wireless networking professionals. WLAN experts are highly networked themselves, constantly sharing information with the community through blogs, podcasts and videos.
Favorites
Revolution WiFi by Andrew vonNagy
WirelessLAN Professionals by Keith Parsons
No Strings Attached Show by Blake Krone and Sam Clements
Transmit Failure by Jake Snyder
Further Reading
Keith Parson's exhaustive list of WLAN blogs on his website is unbeatable. You can check it out here.