On June 25, I was criticized for not being on Facebook. So the next day I joined. And then the next day, I opened a FriendFeed account. And now I've got people pestering me to be on Plurk.
Initially, Facebook filled me with Third Grade anxieties -- "What if so-and-so won't be my friend?" Then came the Ninth Grade anxieties -- "Should I join groups? Are groups un-cool? What about flair? Is that cool? I don't want to be un-cool." Then it just settled down into lots of invitations to play games. I suck at Scramble. I hold my own at WordTwist. I dominate at Sudoku.
I have a blog because it was the easiest way to create a web-presence, and occasionally I do have something I want to say. I have LibraryThing and Ravelry because I like to keep track of what I read and knit. That seems to be about it.
So I'm instituting a new rule: no more social networking applications without a clear purpose and direct relevance to my life -- my first life, and its relevant on-line tools and extensions. I have no need to create a Second Life.