Hello Ernest,
if you're living in Montreal, there are three groups I would suggest:
the Revolutionary Communist Party (Organizing Committees) (http://www.pcr-rcpcanada.org)
the 'Drapeau rouge' newpaper (http://www.geocities.com/ledrapeaurouge)
the Red Youth Front (http://www.frontrouge.org)
These 3 are the only real communist groups in the area, since the others claiming to be 'communist' (like the CPC & CPCML) are stuck in reformism and bourgeois legality.
As for their upcoming events, the RCP(OC) is now launching the speaking tour of one of its activists who just came back from Nepal's Red Zones (posted here (http://www.revolutionaryleft.com/index.php?showtopic=45998) on RevolutionaryLeft). For the moment, the dates announced are in different Quebec regions, but at least one Montreal conference will be organized (as well as some others in Ontario).
As for "Le Drapeau Rouge", I heard that their office is under renovations, but in a few weeks, they plan to organize a weekly event where activists can watch a leftist movie and then discuss about it (I think it will be every Friday evening).
And in the end, the Red Youth Front is re-organizing its Montreal section, and preparing their participation in the March 15 demonstration in Montreal. You get details about their meetings by writing at
[email protected]