LikeBtn widget is a like counter, it allows to add the Like Button on the website with just a few lines of code.
http://likebtn.com/
Widgets · Social Sharing
Get access to data on 18,211 websites that are LikeBtn Customers. We know of 6,786 live websites using LikeBtn and an additional 11,425 sites that used LikeBtn historically and 3,617 websites in the United States.
Get a list of 18,211 websites using LikeBtn which includes location information, hosting data, contact details, 6,786 currently live websites and 11,425 sites that used this technology previously and 3,617 websites in the United States currently using LikeBtn.