iPhone
Apple, Apple iPhone Dev, Apple Insider, Mac Rumours,

Android
Android Developers, Android Forums, OnePlus, Play Store, XDA,

Other Mobile Technologies
jQuery Mobile, PhoneGap,

Carriers / MNVOs
AT&T, T-Mobile, Verizon, Visible, Xfinity,

Advice/Periodicals
Boy Genius, Engadget, Howard Forums, My Rate Plan, Phone Scoop, The Verge,

Shopping
Amazon, Swappa, Wirefly,