[birken]

This is of course the main problem with this type of idea. It is very likely that I will live longer than this site will, therefore it doesn't make sense to use it.

What did you do with the people who had signed up for you site?

[nedwin]

I share your fears about its longevity.

What company would you trust to launch and maintain this kind of service?

I feel like WordPress.org or Wikipedia Foundation would be two companies with the right moral compass, funding and longevity who would be great backers of something like this.

[toomuchtodo]

The Internet Archive.

[nedwin]

Boom. Perfect example.