It'll be back in a few weeks. A much more interactive version of this site will arrive in a month or so. Critical Mass is a worldwide cycling phenomena. The Toronto incarnation takes place each month on the last Friday of the month. There is no official purpose to the ride, but it feels pretty good to be the dominant force on the road for a change.
CM has no organization, officials, or leaders.
Technically, we're just a bunch of people riding around together. In practice we block quite a bit of traffic and from time to time cause a bit of a jam. Come out for the next CM ride. Come in the winter if you think you're tough enough to face the cold, and definately come for a ride this coming summer. We're not blocking traffic, we ARE traffic.