Compete
Compete.com is a traffic research, and web analytics, tool that utilizes a proprietary methodology to aggregate, normalize and project the data to estimate US Internet activity. Based on the daily web usage of more than 2,000,000 members in the Compete community, Compete estimates total traffic, rank and other statistics for the top 1,000,000 sites on the web for use by consumers. More detailed and granular metric studies are done for clients on any relevant site.While compete is not exact on the traffic metrics it delivers it does provide an extremely useful tool for historical traffic trends, audience insight and competitor analysis. The basic service is free; however, if you want traffic or demographic data beyond 2 years you’ll need to sign up for the Intro package at $199 / month.
Quantcast
Quantcast is an audience intelligence tool used by 90% of online advertising and marketing agencies to measure and organize the world’s audiences in real-time. Quantcast engages all 220 million U.S. Internet users, providing detailed audience profiles for the advertising marketplace to learn more about what consumers are doing online.
Quantcast also provide online advertisers with a new way to evaluate their individual customer profiles against the entire U.S. Internet population, so they can identify prospective customers numbering in the millions, even tens of millions.
WebRank Stats
WebRank Stats WebRank is a free service for webmasters, SEOs and internet surfers. Here you can do analysis of any website just by one click. WebRank provides you live statistics like Google Pagerank, Alexa Rank, Compete Rank, Quantcast Rank, Pages Indexed and Backlinks in Google, Yahoo and Bing of any website. Easy to use features helps you analyze your business and perform competitor analysis in no time.
The WebRank Stats FireFox plugin is highly recommended to review competitor sites on the fly.