I have become a Facebook addict--I guess it is better than the other possible addictions one can have.
The thing about Facebook is that, well, you can establish or reestablish connections with people all over the world.
I have already made two incredible contacts--two that I never, for the life of me, thought I'd make. Those two contacts are worth every second "wasted" online, and then some.
Plus, I'm getting some good karma to boot! (Through Facebook's "Send Good Karma" application.)