If it involves spam, try this: http://www.google.com/contact/spamreport.html If not, maybe try it anyway
you can post it here as well. In most cases people you think are violating the tos in fact are doing just fine
Remember in school, when the teacher turned around, and someone threw a spitball her way, and then when she asked who did it, some nerd went and told her...dont be that guy. Do your own thing, the violators will get theirs
Your competitors...I have been there, so agreed. edit:..]I can relate I just got over the whole 'policeman' thing after a while, beat them with your own talents, let them fail miserably.
Dont worry about anyone else. Google will find out if they are truly breaking TOS. Till then dont be a rat