Hmm. I wouldn't call the essential Like button "social", since it doesn't get "shared" with one's "friends" or anything like that. Still, I don't think that's a

Hmm. I wouldn't call the essential Like button "social", since it doesn't get "shared" with one's "friends" or anything like that. Still, I don't think that's an important difference - it retains the lab rat overtones.