1O'Reilly. What Is Web 2.0 Design Patterns and Business Models for the Next Generation of Software[J/OL]. O'Reil- ly, 2008(7 ).[2011-11-18]. http://oreilly.com/web2/archive/ what-is-web-20.html.
3Tim Berners-Lee, James Hendler, Ora Lassila.The Semantic Web[J/OL].Scientific American Magazine,2001 (5). [2011 -11 -18].http'J/www.scientificamerican.com/article.cfm? id=the-semantic-web.
6John Borland. File-Swapping Veers into the Fast Lane [J/ OL].Scientific American Magazine,2007 (5).[2011-11-18]. http://www.scientificamerican.com/article.cfm?id=file-swa pping-veers-into-the-fast-lane.