Mapping services from Russian search engine.
http://api.yandex.com/maps/
Mapping · Maps
Get access to data on 902,389 websites that are Yandex Maps Customers. We know of 381,975 live websites using Yandex Maps and an additional 520,414 sites that used Yandex Maps historically and 24,456 websites in the United States.
Get a list of 902,389 websites using Yandex Maps which includes location information, hosting data, contact details, 381,975 currently live websites and an additional 38,306 domains that redirect to sites in this list. 520,414 sites that used this technology previously and 24,456 websites in the United States currently using Yandex Maps.