[deadbolt]

I feel like many people here wouldn't care if those websites simply stopped existing.

[jfengel]

Certainly a lot of people would care if Facebook disappeared.

There are also a billion other ad-supported web sites, each of which make ten people happy. Not a single one of them would be widely mourned, but 5 billion people would each be saddened by one of them.

[bittercynic]

Many people would, though.

For a long time I thought pinterest was search spam that no human could possibly want to see, but then I met real people in the world who like it and intentionally visit the site. I bet there are people who like ehow and the rest, too.