US Navy sails 1,200 miles on algae biofuel

Newt Gingrich may mock algae as a source of clean fuel, but the U.S. Navy's got no problem with it. In fact, the Navy is extending - literally - its use of biofuels derived from the stuff.

Twitter boss talks about presidential race

The man at the head of the giant microblogging site says without Twitter, candidates will suffer.

Gingrich accused of buying followers, Twittergate ensues

Presidential hopeful Newt Gingrich was recently accused of buying followers on Twitter, a charge the Gingrich camp fervently denies.