>>chalka+J5
There's also its ostensible goal to connect people. I logged in for the first time in months just to see if I had been compromised. In about 15 minutes of goofing around, I got to enjoy countless happy baby pics posted by old college friends, and had a nice chat with someone I hadn't talked to in almost a decade, after I randomly commented on a status update. Then I logged off. I know that my kind of limited use is likely not the average scenario, and I can definitely understand people suffering when they get sucked in. But it's a site that does a damn good job of making it easy for me to find and interact with friends, and I don't believe the tech and design involved is trivial.