Yahoo! (and their annoying yodel-jingle) have finally slipped below social networking giant Facebook:

Facebook has passed Yahoo! to become the 3rd-most-visited Web property in the world, according to web analytics site ComScore. ComScore’s November numbers showed Facebook at 648 million unique visitors per month to Yahoo!’s 630 million. Meanwhile, Google and Microsoft are still hanging tough in the number 1 and 2 spots. These stats take into account all of the sites’ separate services and pages, such as YouTube, Bing and Hotmail, and not just their homepages. This seems like it should work in favor of a large network like Yahoo!, but Facebook’s growth has been massive in 2010, while Yahoo!’s numbers have remained flat.

Yahoo! can still take a little comfort in the fact that it’s beating Facebook in the US (for now, anyway) by a margin of about 30 million unique visitors a month.

Do you think Facebook stole Yahoo!’s privacy rights too?