Please
read the following articles and two other related articles that you find and
then write a short paper (about two pages) commenting on the problem.
http://www.ecommercetimes.com/perl/story/10002.html
http://www.ecommercetimes.com/perl/story/7033.html
http://www.ecommercetimes.com/perl/story/9967.html
http://www.ecommercetimes.com/perl/story/9975.html