How effective are "share this" buttons?
leftnode: I can offer an alternative point of view in that they're clicked numerous times for other applications. I write tracking software for one of our clients who sends out hundreds of thousands/millions of emails to their 400,000 person email list (all legit/opt in). The emails have links to short movies that they can then click a Share Now/Send To A Friend button so their friend will get the movie link too.I don't have any numbers off the top of my head, but they have a pretty decent click rate, way more than 10%. Most of these people are a non-technical audience, so I think that has a lot to do with it too.