Free online classified ads and job posting at Astanda.com
http://www.net-matrix.com/
A database driven 32-bit application that will store all the URLs of the web sites that are linking to you and it will scan these web sites and look for the link back to your site.
http://valet.htmlhelp.com/link.html
From one URL, it can fetch one page or spider the site, and create a report.
https://addons.mozilla.org/firefox/2933
Eases navigation within sequences of pages by providing toolbar buttons for the first, previous, next, and last page.
http://www.link-systems.com/
Distance learning software, specializing in mathematical, scientific, technical and medical material. Run online tutoring, live chat and discussion boards.
http://linkalarm.com
Automatic, scheduled link checking with email notification. Nothing to installjust use a browser. Commercial service with a free trial.
Supports maintenance of web pages with links by checking links in a low maintenance and low resource usage manner. Primarily targeted at GNU based systems such as Linux but also at POSIX systems with Perl.
Find and fix broken HTML links in Web sites automatically. Eliminate the need to manually find and fix broken links in HTML, CSS, ASP, JS and Flash files.
http://yellow5.us/firefox/linkification/
Converts text links into clickable links.
http://www.linklint.org/
Perl program checks all links on a web site, either by a local site scan or remote site scan. [GNU GPL]
http://www.linkpro.com/
Automatic file replication and backup software provides data protection and disaster recovery, file sharing, and web content synchronization.
http://linkquality.com/
Weekly statistics about broken links and site quality across the web taken from checking links at sites in 19 categories. Based on the LinkAlarm software.
http://links.sourceforge.net/
A text-based browser with support for HTML tables and frames. Documentation and downloads for Unix, OS/2, BeOS, MacOSX, Win32 (Beta).