For building owners:

www.skyscrapers.com
Good resource of vendors for building services.
(For example:  contractors for flooring, remodeling, elevator maintenance, etc.)

For current industry news, click to these sites:

www.napps.nwfusion.com
Network World Fusion

 

www.wow-com.com
CTIA'S World of Wireless Communications
 

Here are more useful links:

www.governmentguide.com

The FCC/FAA website allows you to submit and/or review an assortment of official forms. An individual must be prepared to spend a majority of time researching and waiting.

 

www.tessco.com

Tessco is a well-known company that provides a great variety of telecommunication products along with a 30-day return policy.

 

www.tyco-unistrut.com

Unistrut offers a range of products along with links to other service companies in the telecommunication industry.