Designing for iOS 7: Guide to Getting Started

http://designmodo.com/ios-7-design-guide/

20 Best Premium and Free jQuery Lightbox Plugins

http://www.webdesigndev.com/web-development/20-best-premium-free-jquery-lightbox-plugins

75+ Latest Free UI designs PSD

http://www.cssauthor.com/latest-free-ui-designs-psd/

Designing for iOS7: Perils & Pluses

http://www.lukew.com/ff/entry.asp?1800&goback=.gde_3754_member_277110340

UICollectionView + UIKit Dynamics

http://www.objc.io/issue-5/collection-views-and-uidynamics.html

Create a Full Page Background Image with CSS3

http://www.webdesigndev.com/dreamweaver/create-a-full-page-background-image-with-css3

Trending Flat UI Design Kits for Free Download

http://iamdesigning.com/trending-flat-ui-design-kits-for-free-download/