A few hours ago, Facebook rolled out their “Books” functionality to their “Marketplace.” This was, as HackCollege feels, the last major function that Facebook needed before becoming the be-all-end-all website for college students. Half.com might even go out of business because of this. Campus bookstores will go out of business. (Thank God.)

As it should, the Books Marketplace uses ISBN numbers to make everything easy. List books that you need for your classes, and it will notify you as those books become available at your school. Too cool. Too Neat.

So start saving some money and dismantling some money-grubbing corporations:

Facebook Marketplace Books