This Chrome extension blocks distracting sites like Facebook and YouTube

How much extra work could you get done over the course of a day if you had an assistant looking over your shoulder, shooing you away from the biggest time-sucks of the Internet like Facebook and YouTube? If you'd like to find out, there's a new extension for Google's Chrome Browser that, in a way, can serve as that assistant, knowing that most of us lack the self-control to avoid things like wasting time on Facebook, going on epic Netflix binge-a-thons and watching one cat video on YouTube after