Wow, did anyone at Wolff Olins ever take a marketing class? Recognizability and repetition are key. A constantly changing logo is tantamount to blasphemy to the basic principles of marketing and branding. Wow, someone really needs to grab the person making decisions for AOL (sorry, Aol) and shake them - Hard. Maybe slap them and pour cold water on them, too. I've never been a big AOL (oops, Aol)fan, but they're getting taken for such a ride on this it's just plain wrong. Wow, I mean just Wow! Wow.
The top three most recognizable, and therefore successful, logos on the planet haven't changed one iota in about 100 years: 1) Coca-Cola 2) Bayer 3) Jeep.
PS - Hey AOL (sry, Aol) drop these fools and pay me a fraction of what you're giving them to screw you, and I'll GIMP you a better logo within 24 hours. Wow.