Possible Free Quality Content Idea?

Just a thought not sure how practical it would be..

Possible Free Content Idea?

Way back machine & history sites have the previous versions of sites and their content.

How practical or easy would be to find such expired sites and use their content. If we could lay our hands on an authority site with 50-100 articles which expired, would it be a gold mine?

So, Basically its Content which is no longer indexed on Google, due to the site expiring.

Hm... Quite interesting but there's no place where we can easily and comfortable access expired websites.

Of course we can go to archive.*org and try looking for some old archives of website which are not working anymore, but browsing an archive of website will be a disaster! Archive.*org is really slow and in 90% they don't save images of websites.

Anyways, idea is quite good.