The Best of iOS Development Resource List, Updating
https://iosdevweekly.com The Best of iOS Development, Delivered Weekly. Free.
http://www.objc.io A periodical about best practices and advanced techniques in Objective-C.
http://www.raywenderlich.com Ray Wenderlich | Tutorials for iPhone / iOS Developers and Gamers.
http://macdevelopertips.com Mac developer:tips－Code, tips and tricks for developers working on a Mac.
http://ideveloper.co A Podcast For Developers.
http://maniacdev.com iOS App Dev Libraries, Controls, Tutorials, Examples and Tools.
http://nsbrief.com A podcast for Cocoa developers talking about interesting, developer-y topics. Hosted by Saul Mora.
http://edgecasesshow.com A weekly podcast about (mostly Apple-related) software development by Andrew Pontious and Wolf Rentzsch.
http://feeds.cocoapods.org This is the home of the new CocoaPods feed.