There were a few posts earlier about Strava. The thing I like most about it is seeing where other people are riding. There are several pro cyclists (mtb and road) that train in Victoria over the winter, so it's been cool seeing all the different trails/routes they ride.
I don't think it's been posted yet, but Strava has posted a global heat map based on every user's rides. There are lots of tracks around Calgary, so hopefully it'll give you folks some new places to check out.
http://labs.strava.com/heatmap/#9/-1...5887/blue/bike