Recently I moved and had to figure out who to get broadband from. I had previously had SDSL with Speakeasy, but they did not have a good option speed-wise at the new location. FIOS was previously available, but not at the new house. In the end, with much hesitation, I went with Comcast.
If only I had known about this site then, I might have been able to find a better option.
So, if you are debating which carrier to use, take a look at http://www.broadbandmap.gov/ and see what's available.
