Launched in 2008, Retweet Rank was the first tool ranking Twitter users based on influence and enabling easy tracking for retweets. It didn't take long for it to go viral, and from then on, millions of you rocked with us month after month. But here's the tough part: Retweet Rank is no longer available. Yep, it's a bummer! Recent changes to Twitter's API policies have left us unable to keep serving