Mapping services from Russian search engine.
http://api.yandex.com/maps/
Mapping · Maps
Get access to data on 867,114 websites that are Yandex Maps Customers. We know of 373,019 live websites using Yandex Maps and an additional 494,095 sites that used Yandex Maps historically and 24,959 websites in the United States.
Get a list of 867,114 websites using Yandex Maps which includes location information, hosting data, contact details, 373,019 currently live websites and an additional 95,420 domains that redirect to sites in this list. 494,095 sites that used this technology previously and 24,959 websites in the United States currently using Yandex Maps.