A Guide to Core Data Concurrency

http://robots.thoughtbot.com/core-data

Best Bootstrap Tutorials 2014

http://www.extremecss.com/best-bootstrap-tutorials-2014/

iOS 7 in-line UIDatePicker

http://ios-blog.co.uk/tutorials/ios-7-in-line-uidatepicker-part-1/

JKKeyboard

https://github.com/kukosk/JKKeyboard

Tips for High Performance Collection Looping in Objective-C

http://iosdevelopertips.com/objective-c/high-performance-collection-looping-objective-c.html

15 Excellent HTML5 jQuery Plugins

http://codegeekz.com/15-excellent-html5-jquery-plugins/

iOS Auto Layout with Masonry

http://www.infoq.com/news/2014/02/ios-auto-layout