Twitter

No it's not an affectionate name for my sister. It is a new (to me) service that allows you to keep up with what your friends are doing. With my limited use of Twitter so far, it has been enjoyable. If you have several friends/co-workers that you are trying to keep up with, (on an hour by hour basis) try Twitter. Also, for all you Google users, twitter works seamlessly with Gtalk where all your Twitter updates and 'following' can be done right in your Google Chat.