Cambrian House is a really cool/fascinating experiment in "crowdsourcing" software and business ideas. Basically folks register and submit their ideas for software. Other users read the ideas and vote on them and the highest-ranked ideas get put in the hopper for production. Users can then contribute to the open-source software building effort (either through coding or contributing creative) and then Cambrian House sells the software, sharing the proceeds with the contributors. It's basically an ad hoc collective software publishing house that reminds me a lot of how things are run in the Bitchun Society outlined in Cory Doctrow's Down and Out in the Magic Kingdom. Will it work? Who knows, but it certainly taps into the current open source/social networking/entreprenurial zeitgeist.