Networks in the Portland area

I'm often asked what some of the best professional organizations here are in Portland for networking your business.  I've compiled a few lists:

For Entrepreneurs and Start ups:
Maine Technology Institute a great place for grants
2 Degrees Portland for folks moving here and entrepreneurs
Portland Chamber of Commerce is certainly a great way to get out there with regular meetings.
And a new one Start Up Portland

For Women Owned Businesses:
Maine Women's Fund

For Artistic Start ups:
Present your work and ideas at Pecha Kutcha
Maine Volunteer Lawyers for the Arts periodically puts on lecturers with GREAT advice.

Got other ideas, message me we'll add them.