Types of websites : http://en.wikipedia.org/wiki/Website
http://www.brightcloud.com/tools/change-request-url-categorization.php?submitted=yes
https://www.google.com/search?q=website+set+category&hl=en&gbv=2&oq=&gs_l=
https://www.google.com/search?q=website+set+classification&hl=en&gbv=2&oq=&gs_l=