Glympse posts its free location sharing SDK in Android, iOS and web flavors

http://www.engadget.com/2013/05/13/glympse-posts-its-free-location-sharing-sdk/

IM-Creator: How to Build a HTML5 Website for Free?

http://smashinghub.com/im-creator-how-to-build-a-html5-website-for-free.htm

Ecommerce Flat UI Kit Vol.1 (PSD)

http://www.graphicsfuel.com/2013/05/ecommerce-flat-ui-kit-vol-1-psd/

CSS and JavaScript tools to take your website to the next level

http://www.catswhocode.com/blog/css-and-javascript-tools-to-take-your-website-to-the-next-level

21 Best jQuery Pagination Plugins

http://smashinghub.com/best-jquery-pagination-plugins.htm

CSSmatic: CSS Tools Made by Developers for Developers

http://www.orphicpixel.com/cssmatic-css-tools/

a Tool Belt for iOS Concurrency

http://tech.cueup.com/blog/2013/05/08/throwing-the-kitchen-sink-at-concurrency/