The Twitterverse v1.0
Brian Solis and JESS3 have paired up again to release the Twitterverse v1.0. Originally debuted in "May 2009":http://jess3.com/twitterverse/, the Twitterverse is a single graphic designed to inform brands, individuals and organizations about the thousands of Twitter applications available today.
According to traffic analysis website "Quantcast":http://www.quantcast.com/twitter.com, Twitter.com saw a leap in US traffic from under 30 million users a month to nearly 80 million from September 2009 to December 2010, a growth which has changed the landscape of Twitter applications in many ways. So much so that venture-backed Twitter directory "oneforty.com":http://oneforty.com/ not only catalogs them, but also allows users to rate and review (the sign of a developed market, like Amazon and Yelp, to say the least).