http://diveintohtml5.org/storage.html
A really easy to understand intro to html5 and other stuff. Very handy, beautifully written, elegantly presented, a joy of a web page.
https://github.com/PicNet/picnet_closure_repo/tree/master/src/pn/data
Local data store abstraction layer in javascript, tries IndexDB, WebSQL, Google Gears, then localSotrage in that order. Very useful for cross browser data storage.
