Free software to monitor backlinks to your site. If some of the links don't exist, contain wrong anchor, are covered by a "nofollow" flag or hidden by robots.txt then you will be immediately notified by email. Also the program can keep track of your purchased links and notify you about their expiration dates.
The software is free of charge and works under all versions of Microsoft Windows.
Checking link existence
Checking "nofollow" and robots.txt blocking
Checking expiration time for purchased links
Checking PR changes for "From" page
Email notification about problems
Automatic daily monitoring
Options to work with links packets
Import from Excel