Well first of all Yahoo! has some 550.000.000 unique visitors every month and those visitors are giving their data away by signing and out of various services such as Flickr, del.icio.us, Kelkoo (a shopping search engine which operates in 10 European countries), Yahoo! Answers, Yahoo! Messenger, Yahoo! Mail serving over 260 million users, Yahoo! GeoCities, and Yahoo! Finance, Yahoo! Games, Yahoo! Gallery, Yahoo! Buzz and more. This data is a sample of information collected across the Yahoo Network.
A list of some of the Yahoo! owned sites and services:
http://answers.yahoo.com/question/index?qid=20081007214624AAfLXEF and
http://en.wikipedia.org/wiki/List_of_Yahoo!-owned_sites_and_services+Yahoo+owned+web+sites
About Optimize Your Web
Kristjan Mar Hauksson is the founder and director of search and online communications at Nordic eMarketing. The company specializes in multilingual online communications, organic search engine optimization, and marketing through several verticals such as tourism, finance, government, and pharmaceuticals. It helps companies gain international visibility online and to use the Internet as a communication channel; it also provides consultation in web content management systems and analytics solutions. Hauksson is on the board of directors of SEMPO, on the Advisory board for Bing Advertising and founded the Iceland SEO/SEM forum. He has been involved in developing Internet solutions since 1996, and involved in search engine optimization and marketing since 1997. He is a publish author on the topic of Internet Marketing and among other co-authored the acclaimed Global Search Engine Marketing.
Does anyone know how reliable this data is on International level? Is it US based useres mostly or?
How my web can use this analytics, do I need to pay something?
Send us an email and we might be able to help – info [at] nordicemarketing.com and we might be able to help
Their network is indeed huge. Thank you very much for sharing this analytics source data with us.