Can you recommend some websites which list top ten webpages in multiple categories? For example top ten schools?
toptenreviews.com is the best,,
you can search or google which is better
Go-ogling "Top Ten" threw up multiple such list. Even YouTube have a dedicated top ten channel.
TopTenREVIEWS - http://www.toptenreviews.com/ - is the first site which comes in my mind, but I'd rather search on internet "top-ten-whatever" and chose only reputable sources (online version of different magazines for instance - Time, Forbes etc).
I checked the webpage which you mentioned
Is there a country-specific webpage for top-ten?