despicable websites such as rotten.com and liveleak should also be banned -- they really mess up human brain. Some reddit subreddits are extremely graphic and twisted too.
Overall, even web search engines and ISPs need to be vigilant during indexing/hosting of websites and come up with some method of periodic review of websites being visited/hosted and tag them as appropriate or non appropriate.
Somebody profiting from somebody's death or misery or injury is not cool and goes against the very grain of civility.