Mapping services from Russian search engine.
http://api.yandex.com/maps/
Mapping · Maps
Get access to data on 676,388 websites that are Yandex Maps Customers. We know of 308,854 live websites using Yandex Maps and an additional 367,534 sites that used Yandex Maps historically and 23,580 websites in the United States.
Get a list of 676,388 websites using Yandex Maps which includes location information, hosting data, contact details, 308,854 currently live websites and 367,534 sites that used this technology previously and 23,580 websites in the United States currently using Yandex Maps.