HTML De-obfuscation Tools

Links to other tools and resources:

HayWyre Nullifyer for pages encoded with HayWyre.
Another HayWyre decoder, provided by Steve Champeon
URL decoder decode those long, obfuscated URLs here.
Spamhunter's Resource - List of online resources used to determine the origin of spam email
Sam Spade - offers a set of online network tools to trace spammers