Retweet rank is a representative of the number of times a user have been retweeted by others recently.
twInfluence is a simple tool for measuring the combined influence of twitterers and their followers, with a few social network statistics
Twitority is an authority-based Twitter Search Engine, which serves as an alternative to Twitter's own search engine.
Measures your reach, ranking, engagement and displays it by location
reviews your Twitter account and presents a rich visual analysis of your tweet volume, concentration as well as their resonance (measured
What is Ad.ly?
Klout measures online influence, giving users a Klout score between 0 and 100.
TunkRank measures your influence by the amount of attention your followers actually give you.
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