Google+ API functionality.
https://developers.google.com/+/
Widgets
Get access to data on 4,759,060 websites that are Google Plus One Platform Customers. We know of 332,988 live websites using Google Plus One Platform and an additional 4,426,072 sites that used Google Plus One Platform historically and 133,788 websites in the United States.
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Get a list of 4,759,060 websites using Google Plus One Platform which includes location information, hosting data, contact details, 332,988 currently live websites and an additional 191,684 domains that redirect to sites in this list. 4,426,072 sites that used this technology previouslyand 133,788 websites in the United States currently using Google Plus One Platform.
Countries
Financial
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Region