DocJax.com - The Ultimate Search Engine for Documents
Posted by Michael Hartzell on Thu, Jul 21, 2011
Document search engine DocJax helps you find pdf documents, ppt presentations, .doc files, ebooks, whitepapers and more.
DocJax.com is a search engine for documents, which allow you to search documents and e-book from everywhere, preview them and even download them for free. You can find and download a tons of document and e-books but please respect the publisher and the author for their creations if their documents were copyrighted.

There is an added resource at www.docjax.com under the "about us" link. The far right column shows the latest searches. Here is the example as of today:
This is not a substitute for creating your own amazing content though it will help to save hours when doing research. Consider Google search as an option by simply adding the extensions you want to search. (pdf, docx, xls, etc.) Neither search engine is a guarantee of finding what you are looking for but does filter the junk better than a broader search.
If you are concerned about copyright law for your documents or possibly want to understand what is covered when you begin to "borrow" content, I recommend this book:
