Keith Parsons with WLAN Professionals is an industry staple when it comes to wireless technology.  Keiths blog offers tons of short videos covering a variety of WiFi content.  Additionally, you can find videos from the Wireless Lan Professionals Conference.

Ian Stout is CWNE #333 and is a wireless engineer for a K-12 School District in Southern Utah.  Ian started stoutwireless.com to share his insights on wireless as well as a place to share his thoughts.

Ekahau has a blog that I recommend for those of you looking for more information about wireless design, troubleshooting,  and survey tips.