On April 12 the Humble Frozenbyte Bundle went up for sale--for whatever price you want. On top of that, you can select how much of your payment goes to the developers and how much goes to charity.
Wolfire Games started organizing the Humble Indie Bundle series, which the HFB is the third of, in 2010. They're available for a limited time and benefit Child's Play and the Electronic Frontier Foundation. The first two drives generated between $1 and $2 million in sales.
Read more at OpenSource.com