Puzzled by the red-meat anarcho-libertarian bent to so much commentary and punditry in the blogosphere? Looking for some balancing views from the left end of the spectrum? One source you might check is The Lefty Directory. Brian Linse is casting a broad net and a loose definition of the Left to provide a diversity of viewpoints:
My main purpose here is to provide a directory to voices that offer different ideas than those found in the vast majority of conservative and libertarian warblogs. To this end, I feel that a diversity of ideology in this directory is an advantage.