I can't complain about the new Google PR update since several of my new sites had gone from PR0 to PR4, but I've noticed that many prominent sites had dropped in PR. eBay and Yahoo!, for instance, are now only PR9. I haven't found a site other than Google that has PR10. Are there any others out there?

See this list that is updated every pr update: http://www.seocompany.ca/pagerank/pa...k-10-sites.php

BTW, if you Google "page rank 10 sites"

Funnily enough.... you answer can be found very easily.