Broken links checker
A dead link (also called a broken link or dangling link) is a link on the World Wide Web that points
to a web page or server that is permanently unavailable.
The most common result of a dead link is a 404 error, which indicates that the web server responded,
but the specific page could not be found. The browser may also return a DNS error indicating that a web server
could not be found at that domain name. A link might also be dead because of some form of blocking such as content
filters or firewalls.
More Information about Broken links:
Wikipedia
Dead link checker
Dead Links Checker
W3C Link Checker
Iwebtool Broken Link Checker
LinkScan
Yellowpipe - Broken link checker
Bad Link Checking Tool
404 link Check Tool - Add Me.com
Website Goodies-Check Broken Links
Link Checker :: Webmaster Toolkit
Links Analyzer
Link Valet
Hotwebtools - Broken link checker
Broken Link Checker - Khrido
Link Checker - RankQuest.com
Broken Link Checker Andy Langton's