Hi there. I used to live in Pittsburgh and organize/promote Critical Mass rides. To help with this, I registered this domain. Then I moved out of Pittsburgh. Since then, I've been pointing this domain at whoever was currently organizing the rides. Right now, that appears to be nobody. So, there's just a placeholder here. If you are organizing rides, let me know (my name is Jeremiah Blatz, I'm not hard to find), and I'll be happy to point to your DNS or redirect to your blog or whatever.
In the meantime, you can visit bike PGH, which is awesome.