Ask HN: Which sites should be in the public domain and administrated by a trusted public body as well as publicly owned?
Personally, I would go with wikipedia, craigslist, twitter, internet archive, and a public search algorithm. What else should be added?
Or put another way, why twitter and not a "public short message platform"?
Your comment is likely targeting public "utilities" on the web. Of the ones you mention, I only think search and archive are "the utilities of the web": wikipedia gets close, but it's a summarised version of the archive.