TweetMeme Leaderboard - Top 100 Twitter News Sources

The TweetMeme Leaderboard lists the sources most freqently appearing on TweetMeme. Each source is ranked by Presence, the percentage of time each story is shown on TweetMeme. We factor in time spent on our frontpage, categories and also sub-categories. The Retweets lists the total number of retweets for that domain over the course of a week