Web 2.0 Security Issues

Web 2.0 is enriching browsing experience and providing many kind packages in the form of Blog, Social networking sites and other content sharing sites. With lots of facility provided in Web 2.0 sites, there are lots of securities issues as well.

Check this good discussion on web 2.0 security issues
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and you would also like to check this link on debate on Web 2.0/Rich Web Tech.