Mapping services from Russian search engine.
http://api.yandex.com/maps/
Mapping · Maps
Get access to data on 756,552 websites that are Yandex Maps Customers. We know of 362,139 live websites using Yandex Maps and an additional 394,413 sites that used Yandex Maps historically and 24,214 websites in the United States.
Get a list of 756,552 websites using Yandex Maps which includes location information, hosting data, contact details, 456,350 currently live websites which includes 94,211 domains that redirect to sites in the list. 394,413 sites that used this technology previously and 24,214 websites in the United States currently using Yandex Maps.