MetaMix! In case you missed my announcement on MeFi, I just launched MetaMix, a forum for MeFi, MeCha, and MoFi members to trade mixtapes and talk about music. Sign up with your MeFi, MeCha, or MoFi username and join the fun!

The Notebooks of Linus Pauling. more inside

Becker and Posner Conquer the Blogosphere: Gary Becker, a Nobel prize winning economist, and Richard Posner, a prolific author and influential federal judge, launch their blog today.

Whoa! Crazy sound experiments. Flash.