I was reading some answers about ruby and there are a lot of links to _why's sites. _why has recently left the community and took all his sites with him.
Almost every introduction question about ruby will include at least one or two links to one of his sites. Examples:
With a bit more effort I could probably find more questions with a lot of deadlinks.
My suggestion for discussion was, what would be a good way to solve deadlinks in the answers/comments? Not every site _why created has resurfaced somewhere else, but some could be replaced by new links.
But I wanted the discussion to go beyond this specific problem of deadlinks in the ruby answers, an automatic solution would be to let the links be scanned in a batch and when found dead be replaced by a google cache or webarchive version of the page, and perhaps mark it so that the community can replace the link with an alternative?