Site Rank Data - View historical rank information of websites via time series charts.
Quantcast - Quantcast Corporation is a digital marketing company that provides free audience demographics measurement and delivers real-time advertising.
Seoxan - check seo report for any website, alexa ranking, server information, meta tags, authority, page speed and more
SimilarWeb - SimilarWeb.com is a website analysis tool that gives you analytics information for any website.
VALBOT.COM - VALBOT.COM provides domain name valuations.
Ego - Ego gives you one central—and lovely—location to check web statistics that matter to you.