But from earlier in the year. This won't tell you exactly where to vote, but you can figure out what voting district (precinct) you live in with some maps I made last year which work in Google maps. These are some Google Map overlays of local voting district maps I put up earlier, here are some Google map overlays for City of Pittsburgh Neighborhoods also, the KMZ file directly. Also if you are not quite sure what congressional district you are in you can look at my overlays of Pennsylvania Congressional Districts since there are a few contested races going on locally.
Also, I see BurgherJon mentioned a Google Beta thing called Google Vote. But I can't get anything to come up when I try it?