In the Quartier Latin, near Université du Québec à Montréal. Close to the Grande Bibliothèque on the Saint-Denis street.
If you love chocolate, this is the place to go. Hot chocolate is very thick. Don't wait until it is cold because you won't be able to drink it, you'll need a spoon to eat it.
You can use your laptop (or other wifi devices like the iPhone) to access the Internet at this location. This is an "Ile sans fil" hotspot (free acount, Ile sans fil is a non-for-profit grassroot group who manages hotspots in Montréal) but follow the rule: 1 hour for each 10 dollars you spend there (this rule is NEVER enforced formally but it is a question of honnor).