Rate pictures in your own social media network.
Photolikr extension help you to rate and keep a trace of the pictures you prefer on the web.
PhotoLikr will detect any picture on any web site, and display a toolbar on top with a button +1 and -1 ( thumb up and down ) so you could rate it.
Each picture link is store in your personal database, linked to the email adress you will have to enter.
This is an extension for PhotoLikr for windows