• May 21, 2008

LinkedIn was the fastest-growing social networking site in April, with traffic increasing 361% to 8.7 million unique visitors from $1.9 million a year ago, according to comScore.

MySpace easily remained the category leader with $58.7 million users, but has only grown 3% since last year. No. 2 Facebook is up a healthy 56% over the last year to 22.5 million. AOL Hometown has seen the steepest fall-off in traffic, dropping 25% to 6.3 million in the last year.

Among blog sites, WordPress was the biggest gainer in April, growing 160% to 16.6 million visitors. Blogger held the top spot with more than 38.4 million, up 40% from a year ago. By contrast, traffic to Xanga.com has slipped 33% to 2.4 million.

--Mark Walsh