Place the SHAREABLE Widget on your sidebar to display a link to your site, that visitors can copy to their own site (features easy-to-copy link code).
Go to the Widgets menu in the WordPress Admin and add the "In-Bound Links" Widget to your Sidebar or Footer Area.
The Widgets only shows up after the plugin has logged traffic from another site. Try clicking to your site from a link on another site or search for your site on Google and click on the link to your site.
You cannot block a site from linking to your site and the report shows all the In-Bound Links that the plugin has logged. By blocking a site you are telling the plugin not link back to this site, no matter what, even if they keep on linking to you.
In October of 2011 Google announced that signed-in users will, by default, be routed to the SSL version of Google Search. So now, when someone finds your site through Google's SSL Search, the HTTP_REFERER is not actually the page that they found your site on but rather a special redirect page that forwards traffic to your site without passing query information. This means that if you try to go back to the page that they came from it just loops back to your site.