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New data released from Experian Hitwise reconfirms what we've known for some time: Facebook is killing the other social networks. Nowhere is that more true than here in the U.S. where they found that the visits to the site have increased 194% from September of last year to September 2009. However, it's Twitter that's seen the largest year-over-year increase in visits - during that same time period, they're up 1170%. But one of the oddest findings being reported is how the social network known as Tagged is beating out Twitter for the number three spot in terms of visits.

Has this happened to you? You receive a message on Facebook that you've been tagged in a photo, but when you go to look at the photo you discover that it wasn't you at all, but some sort of product, service, or cause that a marketer is trying to promote. According to news from AdAge, this is the latest in guerrilla marketing efforts making its way through Facebook right now. It's so slimy, we hesitate to even mention it here, lest we give anyone ideas.