Usage has been exploding. According to comScore worldwide Twitter visitors reached 10 million in February. How much is that up from one year ago? 700 percent.
Now, there is a lot of carnival to the phenomenon – spam tracks, user number gamers, etc., but I can honestly say that at this time I get a larger percentage of usable information from my Twitter group than just about any other social media platform.
Also, for those with 140 character attention spans (sorting mechanisms) there is a marriage of video for those with 12 second attention spans. Thank you 12seconds.