Once upon a time http://www.metafilter.com/ but I've not been there in a long long time to say for certain it's like it was, but for obscure but interesting that was/is your place
I was a regular visitor for a long time, but as Matt's segued it into (as he himself put it) "a gateway for social justice activism" it's become far too heavy on the pitchfork-rallying.
