Something to watch today, rather than something to read:
That link takes you to a really interesting talk by Eli Pariser at TED 2011 about what the Internet really shows us. It's about nine minutes long, and it's totally worth it. And it'll give you more food for thought about Mark Zuckerberg, who I personally believe is a ginormous tool. But I am not a fan of Facebook, so maybe that's just me.