We are using a "share this" button for a video based startup, and in my experience it is not important how many people will click on that button, but the potent

We are using a "share this" button for a video based startup, and in my experience it is not important how many people will click on that button, but the potential traffic that those link could generate. So my conclusion is that share this button is very effective for video advertising but less effective for social bookmarking.