Twitter users are more engaged than ever before but the count of users at Twitter has been flat in the past six months.
Compete, a Web analytics firm, says the microblogging site’s number of visitors hasn’t changed much since June and that its roughly 22 million visitors in December was about 770,000 fewer than its highest number, which was in August.
ComScore’s usage numbers for Twitter are similar to Compete’s. They show the site peak with about 21.2 million visitors in July 2009 and dip to 19.9 million in December. By contrast, during the same period Facebook grew from about 250 million users to more than 350 million. link.