For both oppo research and the lulz, I subscribe to a healthy number of right-wing email lists. (That number is always growing because the lists are bought and sold like whoa.)
In terms of actual quality of an email program, I give major props to the Senate Conservatives Fund — their emails are consistently well-written and well-designed (and don't give away the deep well of crazy just below the surface).
Then I get gems like this one, signed by Ted Nugent on behalf of Tom Tancredo's gubernatorial campaign. It warns "Real Americans" that "Barack Obama and his radical America-hating leftist goons are perilously close to taking away our
guns and nullifying the Second Amendment." (I mean, probably, right?) Then he offers a chance to win an AR-15.
The email closes by telling his "American BloodBrothers" that "we can't let the clowns in some 'we the sheeple' Governor's Mansions and
in the White House succeed in shredding our constitution and take away our guns. Tom Tancredo will fight for you, so stand with us today."
Fun stuff! Oh, and since I'm sure you all want to enter, here's the contest link.