Forgive the round up sounding fashion of this but here it goes:
Something is in the water and has them running scared. Hence their sudden donations.
And by grassroots I really mean SEIU and the DSCC (And tea parties are astroturfed by people being paid to be there). But if they spend their money on people holding signs for Martha Coakley but who are going to vote for Scott Brown anyway, it's money well spent.
They're going to need it with the way Martha Coakley treated this staffer from The Weekly Standard.
Not to mention a good spell check program. It's her very own state, for crying out loud.
Robert Stacy has Brown's ad and some insightful analysis of it.