Hey! I want to reward the user when he - likes my fb-page - shares the website on facebook, pinterest, twitter or google+ - gives the site a +1 So I need to catch the "event" when the user clicks one of those buttons. Best solution would be with something like "ShareThis" or "AddThis"... So I don't have to do it for every single button... Maybe I can catch this event somehow with their api? Anyone got an idea? Thank you!
Yes, you can these solutions or just simple js code like shown here - http://stackoverflow.com/questions/10602133/how-to-track-twitter-follow-us-facebook-like-us Anyway don't try to track if they delete shares, or unlike, etc - it rarely happens and it is highly suggested to make a small rewarding which costs a little for you.
Sharethis.com does have an api that can help with a callback function when a specific button is clicked-- however I would be concerned that this might become a resource intensive gathering of data if you have a popular site? Q...