Forum Moderators: martinibuster
The other thing to consider is whether search engines would permit your site to query their site hundreds or thousands of times per day or whether some might consider this a TOS violation. I know some sites offer this service, but I don't know if they've had to work things out with Google et al.
Getting beyond link pop checking, perhaps you could find some "code validation" or similar scripts that operate on individual web pages. These wouldn't require as much maintenance, nor would they involve third parties (SEs). How about a site mapper?