Wikipedia, YouTube Driven By Heavy Traffic

The comScore numbers for top global web properties saw Wikipedia
and YouTube pick up 12 percent gains in their unique visitors age
15 and up from around the world.

Microsoft sites still lead the pack, with 505 million visitors
arriving in September 2006 according to the comScore numbers. If
you are wondering what makes Microsoft so heavily visited, a
combination of Automatic Updates and Windows Genuine Advantage
checks probably have more to do with that traffic than the MSN
Butterfly does.

Yahoo sites edged out Google properties in September, but not by a
wide margin. 480 million visitors hit Yahoo's various properties in
the midst of that company's marketing blitz. Google picked up 467
million visitors to its sites for the month.

Traffic drops into the 200 millions for the next two Internet
players. EBay drew 237 million unique visitors to its online
marketplace. Time Warner Network, which includes AOL, grabbed 217
million, which should be of some help to AOL's dreams of a richly
profitable ad-supported/audience driven future.