I have volunteered with the Harvard Square Homeless Shelter (http://www.hcs.harvard.edu/hshs/) before, which needs a lot of help over break when students are gone.
Definitely check out People Making a Difference. They work with a lot of great groups all throughout the Boston-area, especially ones that don't necessarily have organized volunteer programs themselves.
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Date: 2010-12-13 03:28 pm (UTC)I just added a 'volunteer' tag, something we should have done a long time ago, and tagged a few old posts with it.
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Date: 2010-12-13 06:50 pm (UTC)no subject
Date: 2010-12-13 04:24 pm (UTC)no subject
Date: 2010-12-15 10:20 pm (UTC)http://www.pmd.org/t2.phtml?p=home