I don't know if it's just the local area (maybe I'm lucky enough to be in a test market), but I just got an email from RoadRunner explaining that they just increased the bandwidth to 5Mbps (megabits/second).
So I trotted over to testmy.net; a great place to see just how fast your throughput really is.
I tested out at 4683Kpbs (4.68Mbps)! Another way to measure that is 572 KB/sec (Kilobytes/second).
Or, as the web page says "You are running: 84 times faster than 56K and can download 1 megabyte in 1.79 second(s)."
Yowza!