Adm. Mike Mullen, Chairman of the Joint Chiefs of Staff, launched his Facebook page on July 2 and has already managed to more than 300 fans, NextGov.com's Bob Brewin writes. Mullen's Facebook page shows he's a wired guy, with links to podcasts, videos and Twitter feeds, although the last Tweet - on July 5 -- is a bit dated: "Off to Moscow for the Summit. Looking forward to signing the workplan for better cooperation with the Russian military."