Twittering and Facebooking and LinkingIn

I noticed a wave of local attorneys signing up on LinkedIn a couple months ago. Recently I noticed some organizations Twittering like mad. Prior to these, I was getting a lot of Facebook friend requests. Before all of those I had to actually set spam filters specifically for MySpace, thanks to all the babes wanting to make contact with an old lawyer like myself. My question is, where are people finding the time for all this social networking?