An anonymous reader let us know that Wolfire is offering an awesome bundle offer of a bunch of great indie games - including World of Goo, Aquaria, Gish, Lugaru, and Penumbra Overture. Normally it would set you back USD$80 to buy all of those, but now you can name your own price - and opt to split your contribution between the developers, the Child's Play Charity, and the Electronic Frontier Foundation (the US version of the EFA, which does extremely important work in the land where trampling on digital rights was born).
There is no middle-man. You can rest assured that 100% of your purchase goes directly to the developers and non-profits as you specify (minus credit card fees).
We don't use DRM. When you buy these games, they are yours. Feel free to play them without an internet connection, back them up, and install them on all of your Macs and PCs freely.
Not only is this a great deal, but you can directly reward the developers of these titles and contribute to a couple of great organisations. SO GO AND DO IT!
There's a handy trailer
on YouTube which showcases the bundle.