The above link is a way to find your U.S. Representative. Some of you that have multiple representatives in an areas will have to find your zip code + 4 number, which can be found using the second link. I’ve read in different places that those in politics feel the most pressure from letters in the mail, but I think writing your representative is good in any form. Voting is not enough.
A great thing to kill some time at work with!!!
Addition: The first link above is correct now. However, when I first posted it I unwittingly posted a connection to Texas, as that is where I live.