do not report child porn. i know it sounds bad, but listen. i use IRC sometimes, and I was spammed by a user with a CP ftp server. the ISP the pedophile used was roadrunner USA. i e-mail
security@roadrunner.com, paste them the ad the person gave me, and asked them to investigate.
road runner's response? we want a log with timestamp, if not, we can't do anything.
ISPs and law enforcement have fell way behind on CP enforcement. they'd rather go entrap random people online who are meeting undercover officers for sex, than actually stopping the CP itself.
the main problem is lack of money for law enforcement, and lack of training. ask a regular detective about gnutella and limewire, he'd give you a funny look.