Idealist

http://idealist.blinkr.net/

I think this is interesting because it’s a kind of ecosystem (not dissimilar to the entire internet in some ways) for “products” that compete on their ability to get attention rather than be sold. This makes for weirder and more interesting things.

Although, alas… (and ain’t that always the way?) you could be forgiven that design agencies are using it for free advertising.