A little while back the city of Toronto launched a decent organization with a free to get membership card, Live Green:
The site itself has a variety of affiliated organizations which offer discounts to card-carrying members, some great education resources, community grants for green initiatives, green living ideas, and some suggestions on how to green your business. It's a government organization so it's not fully thorough, but it feels like a pretty good start. It is in it's 5th year of existence now and some awesome sounding stuff has come from it's Community Animator funding, but that seems to have been discontinued for this year...
In any case, free admission to the Green Living Show tomorrow! I can live with that!