Add Facebook, Twitter, LinkedIn, Google, Pinterst and Tumblr to your WordPress blog.
http://wordpress.org/plugins/really-simple-facebook-twitter-share-buttons/
Widgets · WordPress Plugins
Get access to data on 65,196 websites that are Simple Share Buttons Customers. We know of 10,165 live websites using Simple Share Buttons and an additional 55,031 sites that used Simple Share Buttons historically and 5,142 websites in the United States.
Get a list of 65,196 websites using Simple Share Buttons which includes location information, hosting data, contact details, 10,165 currently live websites and an additional 3,948 domains that redirect to sites in this list. 55,031 sites that used this technology previously and 5,142 websites in the United States currently using Simple Share Buttons.