I don’t feel represented

This is getting SO tiresome (another story about congress drafting a bill to further strengthen copyright/stick it to consumers). We clearly need a voter revolution in the next set of elections. The problem is that determining how your representatives voted on issues that are important to you seems to be a huge PITA. I want a web site where I put in my zip code and select from a drop down list of potential broad categories of legislative hot button issues (i.e. copyright, civil liberties, abortion etc.). The system could then check against its database and let you know how your representatives have voted. It seems pretty easy to do, but I’ve been searching and can’t find anything reasonably close to that. Does such a beast exist?