I myself have decided to start using twitter. I like the character restriction. Time is scarce, and I really would like to spend as little of it as possible to get timely updates about the things I care about.
My initial aversion to it was due to how eagerly it was embraced by people who like to blab about themselves (i.e. celebrity culture) and marketers. But screw them, I'll figure out how to use it to my own ends.
