I can directly attribute this bump in speed in my town (Austin) to Google Fiber. Before Google announced they were coming to Austin, the absolute fastest consumer-grade connection one could get was 50 Mbits, through TWC. As soon as Google mentioned their intentions to enter Austin with their Fiber service, TWC immediately started offering 100, 200, and even 300 Mbit plans, with plans for a 500 Mbit service level on the horizon. AT&T did something similar with their U-Verse service as well. Hell, I can even get these speeds in the next town over (Buda), where Google hasn't even announced they're going to go into. A little competition goes a long way.