Freedom locks down the 'Net so you can work

Ah, the Internet: Fountain of information, smorgasbord of entertainment, nexus of social networking. Oh, and bane to productivity. As anyone who's procrastinated in the past decade knows, the Internet's vast stores of instantly accessible content are nigh irresistible...especially when you've got work that needs doing. A few years back, I covered Think, a utility that visually blocks out all but...