If you have an LJ, consider voting in the elections for the advisory board.
Livejournal is electing, via popular vote of LJ members, an LJ user to serve on their advisory board. Is this a significant position? Probably not. However, one of the leading candidates — jameth — is a troll whose recent bad behavior includes anti-semitic screeds, harrassing Ginmar, and adding to the harrassment of the Wiscon attendees. So, go vote against him.
In order to help your ant-jerk vote count for the most it can, p-zeitgeist recommends voting for the following advisor candidates: legomymalfoy, vichan, and rm.
Keep anti-semitism out of LJ. Or at least off its advisory board. Go vote against a jerk.
(Note: only vote once, and if you own multiple LJ accounts, only vote with one of them. Otherwise, your vote will be discounted.)