It literally takes half a second to get what the site does and how to help. Brilliant.

I'd put the mailing list or something similar more prominently above the fold, because more people would regularly return if they'd get a weekly or monthly email with success stories and new profiles/stories that still need funding.

F.e. currently every project is fully funded and I almost fear forgetting about the site.

Anyway great project if you need someone to help with some marketing ideas or anything else from time to time (of course for free), send me a mail (me[at]ilkthomas[dot]com). I'd love to help.