top 10 social sites on alexa

http://www.jackhumphrey.com/fridaytrafficreport/top-10-social-sites-by-alexa-ratings/

List of Social Network sites

http://en.wikipedia.org/wiki/List_of_social_networking_websites

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so i would like to make some comments

Please put your blog names here

Free blogger templates

http://www.finalsense.com/services/blog_templates/february.htm

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Portfolio Handbooks

1.Campbell,Dorothy M.,and others(2001).How to develop a professional portfolio.Boston:Allyn and Bacon.
2.Montgomery,Kathleen and Wiley,David(2004).Creating e-portfolios using powerpoint. A guide for educators,London:Sage Publications.