FCC Wireless Telecommunications Bureau
Responsible for FCC domestic wireless telecommunications programs and policies, including Amateur, Cellular, Paging, Broadband PCS, and Public Safety.
http://wireless.fcc.gov/

T Mobile
T-Mobile cell phones and wireless services.
http://www.t-mobile.com/

Lets Talk
Compare cellular phone plans and accessories
http://www.LetsTalk.com

Virgin Mobile USA
Pay As You Go with no annual contracts.
http://www.virginmobileusa.com/

US Cellular
Compare phone plans
http://www.uscc.com

Mobal
International cell phones and satellite phones, provided by Mobal
http://www.mobalrental.com/

Wirefly
Compare cellular phone plans and services
http://www.wirefly.com

The Wireless Report
Wireless information blog
http://www.thewirelessreport.com/

A1 Wireless
Ecommerce wireless vendor.
http://www.a1wireless.com/

Data Pilot
Express, and Palm OS Sync your phone's calendar to Outlook and never be without important meeting reminders. Check emails on the go using your cell phone as a wireless modem.
http://www.datapilot.com/

My Phone Finder
Locate the cell phone that is best for you.
http://www.myphonefinder.com/