Walking Papers is neat, but at the moment it is useless if you want to edit on the main part of Montreal Island or in Longueuil. Earlier this month, y'see, there was a screw up with some data that shifted several dozen points on the south shore, this has since been fixed in most mirrors, but Walking papers is nearly a week late, resulting in that mess making it impossible for me to use the service for my area (I just moved. If I still lived in Montréal-Est, that wouldn't be a problem).
The Cloudmade "minutely" upgraded no-name layers has devolved into an utterly useless farce. In someone else's words: "The minutely noname tile server is currently even more outdated than the weekly one."
The osm History Viewer is an awesome little tool that is very poorly documented. One has to make educated guesses at what the colors mean to get anything useful out of it.
I'm mapping again in my new neighborhood. It's crazy the sketchiness of the place! I feel like a little child again! I discovered that the Moroccan consulate is two street corners from my home! Any Montrealers interested in some cake slice sharing?