I'm genuinely curious from an ideological perspective, why archivists think all this material is worth saving? People often compare the shutting down of sites or the banning of content (e.g. When Tumblr banned porn, or now yahoo shutting down groups) to the burning of the Library of Alexandria. But there is a huge difference. The LoA held knowledge collated and collected by the best thinkers of the time. The Internet…
Even if we still had the Library of Alexandria, it may have shed zero light on the actual lives of citizens. Archiving content on the internet means capturing thousands of individual level perspectives and experiences. We don't know what will end up being important to historians 50 or 100 years from now. I would bet there are dozens if not hundreds of historians that would give anything for a record of their favorite…
But many don't have the pockets for better systems, and so their earned knowledge lived on Google Groups. And when you think of all the people and groups that might have had needs to store their history, and what tools they might have used, what do you expect the skew of Yahoo Groups was. Certainly no Fortune 500 companies, but rather nonprofit and grassroots and all sorts of domains that are already getting the short end of the stick in our world :)