The
unelectable googlebomb has worked, but while it is entertaining for the liberal blog-world, it's not particularly effective (i.e. how many swing voters do you expect will punch 'unelectable' into the query field?).
A new googlebomb that may do some good is one that points to Dean's
Bush tax cut site. A query for
tax cut or
Bush tax cut made by an undecided voter.
In the interests of full disclosure, I first saw this idea for a tax cut and/or Bush tax cut googlebomb in an anonymous comment on Atrios.