DocJax: Cool site for searching any Documents online

Looking for a neat site where you can easily search for documents?

Well, DocJax is an entire search engine that matches your query with Word documents, Excel spreadsheets, Powerpoints, and PDFs.

This is a very convenient way to search for free scanned PDF books, thesis papers, Powerpoint presentations and more.

By default, the results page shows all the formats together, but you can filter the results by clicking DOC, XLS, PPT, or PDF.  It also offers you a Preview It link below any document that will open in the Web-document service Scribd. Right next to it, there is a Download option.

The site, launched in last month, is definitely a very useful tool online and you may soon find yourself lost in the site.