Hub Finder is a free link analysis tool from www.seobook.com.

• Hub Finder looks for co occuring backlinks, which may be authoritative links that help satisfy topic dependant link authority algorithms.
• To use Hub Finder enter a subject, and / or competing URLs to analyze linkage data of top ranked competing sites via the Yahoo! API.
• Questions, comments, feedback? Let me know what you think.
• If you would like to mirror the tool feel free to grab the source code.