Creates Gravatar Profiles on the site.
http://blog.gravatar.com/2010/06/02/public-profiles-for-everyone/
Widgets
Get access to data on 7,201,269 websites that are Gravatar Profiles Customers. We know of 2,627,913 live websites using Gravatar Profiles and an additional 4,573,356 sites that used Gravatar Profiles historically and 1,802,471 websites in the United States.
Get a list of 7,201,269 websites using Gravatar Profiles which includes location information, hosting data, contact details, 2,627,913 currently live websites and an additional 576,597 domains that redirect to sites in this list. 4,573,356 sites that used this technology previously and 1,802,471 websites in the United States currently using Gravatar Profiles.