Getting 1000 people to your site one time is not nearly as valuable as getting 10 people to visit your site 100 times, or even 100 people to visit 10 times. To reiterate, social networking is not a worthless activity, but so many people place way way way too much emphasis on it for business. It's also for search-ability and ranking, which generates more traffic. How do you know those 1000 people only visit 1 time? Sure it's not as huge as site optimization (ex. second paragraph), but it helps. Just curious...Why do you think business and websites place too much emphasis on the like button, Twitter, Facebook, Digg, etc... I mean just about every website uses this. I guess we all are just wasting our time, eh?