As Promised, links that will be helpful for those wanting to learn more about internet searches:
Alexa Web Search – analyzes site traffic including ranking, global users, pages linking to the site, and links to related pages of interest
ChaCha – offers live human guides to help answer queries; accepts queries from mobile devices
FindFiles.net – searches for all MIME types found on the Web, for example audio, video, images, software, PDF files, text documents, cascading style sheets, xml documents and zip archives
Google Book Search, for searching the full text of books from most publishers in the U.S.
SearchEdu.com – service that limits results to the .edu, domain; also offers to search well-known dictionaries, encyclopedias, almanacs, etc.
Wolfram|Alpha – enter a question or calculation, and Wolfram|Alpha uses its built-in algorithms and own collection of data to compute the answer