BacklinksSearch.com is a site dedicated to helping users uncover all information about their backlinks.
The site design itself is nothing at all remarkable, it is a modified WordPress Theme, as the site architecture is using Wordpress as a CMS.
The Search Tools are written by me and hopefully will prove to be useful. The homepage uses the Google API as recently opened by Google for statistics such as pagerank and backlinks.
The same for the Yahoo Linkdomain tools.