oh, my.
There is pending legislation, stuck in committee I think called HR 940, Suzanne Gonzales Suicide Prevention Act 2007, "To amend title 18, United States Code, to prohibit the use of interstate commerce for suicide promotion."
Here's the hell into which her parents were plunged:
Parents: Online mewsgroup helped daughter commit suicide (CNN)
This was the same newsgroup on which the Colorado New Life church shooter left his last messages.
There was a similar bill for veterans, and surprisingly, that passed IIRC.