3.5 References
1. Cooper, W. (2008). Search over style. Retrieved from: http://www.nma.co.uk/Articles/37290/Search+over+style.html
2. Google (2008). PageRank Explained. Retrieved from: http://www.google.com/technology/
3. Norvig, P. (2005). How Google search works. Retrieved from: http://www.rafeneedleman.com/rafes_blog/2005/05/how_google_sear.html
