From a TechCrunch piece entitled
"Can Anything Stop The Facebook Juggernaut?":
As usual, William Gibson put it best: “Facebook feels like a mall. Twitter feels like the street.” (Which I suppose makes Zynga the mall’s arcade.) It’s one thing to shop there occasionally, but quite another to be a full-fledged mallrat-and according to the stats, that’s what we have collectively become. I want to believe that eventually we’ll wake up, and grow up, and realize that new and interesting things mostly happen elsewhere.
And so, I speculate hopefully: what if Facebook is the new LiveJournal?
You might not remember LiveJournal, a now-moribund social-blogging site...