Another new site I've just discovered:

www.bundlestars.com

This is another Indie bundle site, with proceeds split between charity, the games developers and the site.

There latest Bundle 10 is well worth buying. For just £3.91 you get a lot of games for your money, including some such as Air Conflicts: Pacific Carriers, which was only released at the end of last year and still retails on Steam for £22. So a bargain!