The House voted on H.R. 3313 which says that the Federal Courts (including the Supreme Court) have no jurisdiction over cases against the Defense of Marriage Act. Here are the Democrats who voted, ultimately, against gay marriage.
Okay, now it is highly unlikely that anyone who reads my blog lives in one of these districts, but if you do, please write your Rep. and give him or her a piece of your mind.
Many of these folks have their e-mail set up in such a way that only constituents can e-mail them, but for those who don't, I'd suggest dropping them a line to let them know how you feel. Sure, they probably won't do anything about it, but at least an intern somewhere will know that you're disappointed.
Oh, and just because it's the right thing to do, take a minute to see how your representative voted. Then click here to send an e-mail telling them what you think about their vote.