This week, in our Linux Page (in Spanish), we posted a brief review about $timator: an easy to use website which allows you to better understand the value of your blog or other website. $timator is able to give you a good quaotation af yhe hipothetic value of a website calculating its ranking on search engines, social networks and volume of visitors. If your blog/website is a good one you will spend some minutes waiting $timator results but it could be a good tool for a first value test before buying a website. Recommended! 
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You can also try http://www.estimix.com – a free tool that provides a nice summary of the website performance.The estimation provided by estimix is the result of a complex analysis based on factors like: the age of the website, the demographic structure of the traffic, the countries where the website is popular and sources of the traffic.
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There is another site out there called Web worth – “Web Worth can estimate a web sites worth or value, daily ads revenue, daily page views, back links and directory listing” http://www.webworth.info/ – Try it out looks like the data is based on traffic!
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One of the most accurate site value calculators: sitevalue.sulano.com
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