Well, well, look what just came across the Betabeat ticker: Google’s Marissa Mayer is now the CEO of Yahoo. DealBook is reporting that she resigned today–by phone, no less–and that she’ll start the new gig tomorrow.

God knows there’s no time to dilly-dally.

Recent reports had put interim CEO Ross Levinsohn in the lead, with the selection process expected to drag on for weeks. Ms. Mayer’s selection is, suffice it to say, a bombshell. Read More