tedster - 4:37 pm on Mar 12, 2011 (gmt 0)
We normally do not discuss specific tools because our members here create and market so many tools that we can start a marketing war. I'm making an exception in this case because there are only two major providers that do independent crawling of the web for links.
One is the SEOMoz Linkscape tool, and the other is MajesticSEO. That description is the kind of report MajesticSEO offers.