I know you've heard of Facebook, and if you aren't on Facebook, you have friends urging you to get on Facebook.  But Facebook is not your only option if you're interested in experimenting with the social media craze. The other big social media site is Twitter, but while it's easy to see the point of Facebook—connect with friends, play wildly popular games like Farmville—it may be difficult to see how tweeting (that's the term for posting to Twitter, not "twittering") could conceivably improve upon your already hectic life.

Actually, if your life is insanely hectic, you might get more use out of Twitter than other people, because Twitter is the perfect communication medium for people who only have a few seconds at a time to catch up with what's happening on the Web and in the world.