I'd like to start group rides, as experience and skills building, should I ever decided to do some light/amateur racing.. As well as just for fun/motivation, to go farther/longer. Everyone does them, but where do you actually find them? A couple of my LBS's have racing teams, but no mention of local group rides. I'd like to "think" i'm fast enough to hang onto an intermediate level group ride, but don't know where to look to find one. Is it just a matter of knowing like minded individuals? As it stands now, i don't know any in person. I live in Toronto, and while there is the "Donut Ride", id like to start smaller then 50+ riders.

Any advice on where to actually find local group rides? And how to join them?