Error Handling
Indigo 404
404Handler
Better Error Handling with Mail
CyErr - Error Handling Library
Dynamic Error Pages
Email Broken Links Script
Error Manager
errorBot
ErrorDocument 403 Apache Server
event log, web tracker & script profiler
Interactive 404 page
Mr. Bob's Error Page Generator
One File PHP Error Handler
phpErrorDoc
phpLinkRot
PHPMachine Error Handler
PHPSiteMon
Simple Errors