Cell Phone Knowledge Base
A free collaborative encyclopedia for everything related to mobile phones and accessories.
Gizmodo - The Complete Guide to Setting Up Your New Xmas Smartphone
John Herrman explains everything you need to know: accessories to buy and not buy, getting started, apps, backups and other tips.
History of the Cellular (Cell/Mobile) Phone
Phones, companies, people, technology.
Forums for BlackBerry/Android/Apple/Windows themes, as well as software, ringtones and images.
The Phones Show
Video podcast about phones and smartphones by Steve Litchfield.