I have been using this tool since it was first posted since 1997. Xenu’s Link Sleuth (TM)checks Web sites for broken links. Link verification is done on "normal" links, images, frames, plug-ins, backgrounds, local image maps, style sheets, scripts and java applets. It displays a continuously updated list of URLs which you can sort by different criteria. A report can be produced at any time. Additional features:

• Simple, no-frills user-interface
• Can re-check broken links (useful for temporary network errors)
• Simple report format, can also be e-mailed
• Executable file smaller than 1MB
• Supports SSL websites ("https:// ")
• Partial testing of ftp and gopher sites
• Detects and reports redirected URLs
• Site Map  

Anyways go here and get it, you will love it and its the fastest tool I have ever seen to find broken links on websites.  Every year I try and remember the name of this tool and pass it on.  So bookmark it yourself! Download from developer Enjoy and please post comments if you find it useful and I will continue to post more great tools.