Mapping services from Russian search engine.
http://api.yandex.com/maps/
Mapping · Maps
Get access to data on 936,980 websites that are Yandex Maps Customers. We know of 367,486 live websites using Yandex Maps and an additional 569,494 sites that used Yandex Maps historically and 23,857 websites in the United States.
Get a list of 936,980 websites using Yandex Maps which includes location information, hosting data, contact details, 367,486 currently live websites and an additional 35,157 domains that redirect to sites in this list. 569,494 sites that used this technology previously and 23,857 websites in the United States currently using Yandex Maps.