Alireza Noruzi received his Ph.D. in Information Science from the University of Paul Cezanne in France. Besides Alireza Noruzi received a M.A. degree in Information Science from the University of Tehran in 2001 and B.A. degree in Library and Information Science from Shiraz University in 1998. Our guest author is also the Editor-in-chief of Webology, an international open access journal. You can contact him at http://nouruzi.googlepages.com. For a comprehensive list of the several blogs he owns, see our comprehensive list on the LibWorld page.