Twitter Surpasses MySpace, Facebook Still King

Tweeters at Twitter headquarters will certainly tweet about this. The four-year-old social networking site overtook rival MySpace in unique visitors for the first time, becoming the No. 3 social networking site in the world, according to new data from marketing research firm comScore Inc. Signaling the room social networking sites still have to grow, though it ranked third among social networking sites, Twitter also ranked #50 in the list of top 50 properties overall, as examined by comScore.