My small list, and I think it is pretty accurate, some of these are affected by country (news and weather primarily):
This is a list of top visited sites in the web, but they don't only count "Google" as one (1) they have too many Google branches in the way, and YouTube is not even there, though MySpace and Facebook are:
For Search and Reference CNET has its own list and WikiHow and Wikipedia are both included (YES!):
But, let's face, it, 99% of web searches are for pr*n.