There are plenty of tools available to perform such action. Here are some of them. Majestic-SEO Ahrefs Site Explorer SEOmoz Linkscape
There are many seo tools which you can use to track inbound links to a site. I use tools from majestic seo, Ahrefs Site Explorer and Open Site Explorer.
download seoquake from addons that is the best way to know anout inbound and outbound links , pr of the page and alexa rank of the page