cutestat - Website Stats and Valuation. CuteStat.

Site Rank Data - View historical rank information of websites via time series charts.

WebsiteOutlook - WebsiteOutlook is an all-in-one website that provides you detailed information on famous websites based on various data sources like traffic, page rank, and estimated ad revenue.

Q-Stats - Get free marketing insights for every question on Quora.

Site Worth traffic - Site Worth traffic is a cost-effective site that is introduced to estimate the value, daily page views, daily visitors, and daily revenue of a website.

Seoxan - check seo report for any website, alexa ranking, server information, meta tags, authority, page speed and more