This was in Lifehacker but really is a great reference tool if you are getting ready to move or just want to compare services in your area. Just go to the National Broadband Map and enter your address or zip code to see the providers in your area. It breaks the providers down by Wired and Wireless access.
When I landed on the website using chrome (via my Chrome Notebook) the site asked if it could track my located and with the click of a button found my nearest providers. It's amazing how Slow Verizon and AT&T are compared to Time Warner - at least for my area.