Great request. On anyone's profile page you can select "all" under any of the links they share. This brings you to a page that shows the link and all the people who have rated it.

When you're on a site you can also get to that info page about the site by clicking the "shared by (n)" link in the sidebar. (where n is the number of people who've shared it.)

We should at the number of shares and the first share to the info page. Thanks for the feedback!