You can only view the Referrers statistics that includes websites and pages from which visitor came to your site (by clicking links on these pages). It's not possible to get information on other sites visited by users as logs don't contain this information.
I don't think so. Large companies like Google and Facebook, as well as ISPs may have such information (while not for all users), but they won't share it directly because of user privacy. You can find some other answers regarding it at http://security.stackexchange.com/que...
Thanks for your timely reply. Is there any other way to get information on other sites visited by the user?