From Csc about page:

Most website showcases are run by a handful of people who decide if a website should be featured, how very un-Web2.0. Cool Site Collection was created to return the power to the people.

Cool Site Collection allows users to post websites and vote & comment on websites posted by other users.

The more user votes a site recieves the higher it moves in the ranking and the more likely that site is to become a featured site.

A new site will be featured once every 24 hours.