We know Martin Taylor, former Windows Live marketing chief, is not at Microsoft anymore, even though he was all over the company's press releases earlier this week. His abrupt departure has raised lots of questions, such as why he left and where he might end up.

"He hasn't landed here," said Courtney Hohne, spokeswoman for Google, which is a direct competitor of the Windows Live services Taylor was to market. Yahoo! was still getting back to us this morning.

Learn more about Taylor in this profile from last spring.

Update: He's not at Yahoo! either, a spokeswoman said this afternoon.