i started Twitter in earnest a couple of weeks ago – name is insidebooks on there as well – and am finding it addictive. The main reason is that not only does it provoke you to condense your thoughts but it is also more socialble and interactive than blogging.
As a result my attitude towards blogging is becoming more strained and that is something to keep an eye on. Micro blogging might be seen by some as a cop out, because of the 140 character limit. But in fact I am communicating more often and more widely on that medium.
Still for the foreseable future both this and Twitter will be kept going to offer a best (or worst) of both worlds.