Just in case you haven't heard about it or purchased a pack yet, Wolfire Games is running a pay-what-you-want Humble Indie Bundle promotion, in which you can pay what you want to download five excellent independently developed titles and contribute to two charities: Child's Play and the Electronic Frontier Foundation.

The five bundled games includes three IGF award winners -- 2D Boy's World of Goo, Bit Blot's Aquaria, Cryptic Sea's Gish -- as well as Wolfire's Lugaru HD and Frictional Games's Penumbra Overture. Each of the titles are available on Mac, Windows, and Linux, and none of them have any bothersome DRM implementations.

So far, the bundle has raised $217,080 from 27,654 contributions, with the average contribution at $7.85. If you're one of the first 30 people to donate $100 or more, you'll receive a complimentary EFF Pioneer Level Membership. The promotion lasts for only six more days, so grab a bundle (and some copies for friends) soon!