Facebook's one-click-like conversion rates.
1. You can click like.
2. You cannot click unlike.
With twitter and google+ you’re brought to another page and have to write a more and think about what to say.
Facebook’s conversion rates speak for themselves. Perhaps less meaningful and doesn’t rank them higher for SEO though.
I’m going to see if we can build a retweet button for our company and see if we get more clicks that way… Instead of having users generate content themselves.