Memeorandum goes live "offers a set of pages, each page highlighting the best contributions from a different community of writers, recognizing new sources as soon as the community does, and in a form conveying ongoing conversations." There is also tech.memeorandum. Via Read/Write and Scoble...also, previously noted here as a previous version...
Lego Astrobots Blog From Mars Rovers - The Planetary Society has teamed with NASA to "man" it's two Mars Exploration Rover spacecraft with Lego "Astrobots." The bots, Biff Starling and Sandy Moondust, are blogging their adventure "to allow kids to vicariously experience life in space, from launch, through the six-month space cruise, to landing and roving on the Martian surface."