Please review our project SiteCanary
jgfoot: I like it.Your notification e-mails were flagged as spam by Yahoo mail.  Consider using DomainKeys or something like that.I noticed your TOS requires that we only monitor sites that we own.  Smart.  In case someone breaks this rule, you might want to give site owners a chance to report problems.  Maybe you could have a unique string in the user-agent that would let you look up which of your users created that notification?