A much better solution would be to see what getting connected to the Net really means. Any of these sites could have been victim of failing or misconfigured router, victim of legitimate over-use (hey ask any site that suffers from the Slashdot Effect ... heheh), a failure of the line provider (MCI, AT&T), a failure of the server hardware. It would have been the same: downtime one way or the other. So, why chase around for eventual culprits? (probably teens anyway)

They are buisnesses, THEY SHOULD GET INSURED for this and stop complaining about individual's actions on the Net. For god sake, these are predictable risks. does Greyhound calls in the FBI cause one of its bus was stopped as a tire got puctured by a broken coke bottle? Do we chase all soda drinkers for it and organise a manhunt? No, it's just part of the risks, so you get insured and that's it. Is that too pro-active for them to handle? Gee, any old fart from before the "MBA generation" would have seen that one comming.

I suppose those new companies need more mature managers.