Like the concept, not so much the projects they have right now.
BTW is just me or these crowdfunding sites are all the same? are there any examples of someone modifying the "formula" and coming up with something new?
i'm one of the two founders of crowdtilt, in the current yc batch - our modification on the model is crowdfunding for groups of friends (ie instead of a $40,000 documentary it's a $800 party-bus or $500 tailgate), though now it's being used for bigger things like renting out a space for sxsw or renting out a big house for group vacations.
note: crowdtilt doesn't really enter the discussion of this thread, but figured i'd answer your question above
BTW is just me or these crowdfunding sites are all the same? are there any examples of someone modifying the "formula" and coming up with something new?