How much do you use Twitter?

I signed up for Twitter a long time ago (March 2007 to be exact), used it for a few days, realized its fun but useless and stopped using it. Since then, twitter has had an exponential growth, and specially exploded in the last few months. However, unlike Facebook or YouTube (to which twitter is being compared with) I don’t find it sticky or interesting enough on a regular basis. A recent report by …