Though I read heaps of books, blogs and websites, as a minimalist, I shall keep the list short, so here goes my favorite development resources

• Sites:
  
  iPhone Dev Center – Apple Developer
  http://blog.csdn.net/totogo2010/

• Forums:
  
  Stack Overflow

• Blogs:
  
  Cocoa Is My Girlfriend
  Ray Wenderlich
  Cocoa with Love
  maniacdev.com

• Books:
  
  Programming in Objective-C (4th Edition) by Stephen G. Kochan
  iOS Programming: The Big Nerd Ranch Guide (2nd Edition) by Joe Conway and Aaron Hillegass
  Tapworthy: Designing Great iPhone Apps by Josh Clark

• 3rd-party libraries:
  CocoaPods
  AFNetworking
  MagicRecord
  BlocksKit

• Artwork:
  
  Speckyboy Design Magazine
  Glyphish – Great icons for great iPhone & iPad applications
   
  Test
  https://testflightapp.com