The new tool for backlinks analysis is available at ahrefs.com since march 2011. It provides lots of useful backlinks statistics for your and your competitors' (or everyone else's) sites.
Distinguishing feature of this tool is an independent database refreshed in realtime (circa 6 billion external and 25 billion internal links added each day). Ahrefs.com uses custom crawler to fill this database and is not affiliated with other search engines or similar services.
You're welcome to try new possibilities on any URLs you are interested in!
Ahrefs.com provides several free and paid service offers depending on the depth of information being analyzed.