Behind the scenes, we've been thinking about what the 100,000th user on MeFi would mean, and how we could commemorate it, so I'm floating our idea here... [more inside]
A dude set up a tiny auction site designed to sell to a small, trusted community. I think something similar would work well for MeFi. (via DF) [more inside]
The Metafilter 3l33t userid auction is up to $70. It might be silly, but it's for a good cause.