Do you spend time in your hosting control panel looking for 404 errors?  If so, this module will make it easier for you because it will email you when there is a "page not found" on your site, which can alert you to missing pages that you may want to add in your Google Webmaster's Toolbox as a redirect to another product or page.

Zen Cart Versions:  1.5.0, 1.5.1, 1.5.3, 1.5.4, 1.5.5