[talktime]

On a wider point, I often see Facebook cited as an example of the 'Open Web'. However a lot of it's content is in Facebook groups, which requires a FB registration and membership to access. It's not open or publicly searchable. I can't think of a better example of the deep or hidden web. Previously a lot of that information might have ended up on more widely accessible forums.

[pgeorgi]

Calling facebook part of the deep web - interesting proposition!

[mintplant]

Facebook perfectly fits the original definition of the term [1], but unfortunately media confusion has turned it into a synonym for Tor and hidden services.

[1] https://en.wikipedia.org/wiki/Deep_web_%28search%29

[Shish2k]

Are you not thinking of "dark web"? I see that a lot, but I've not seen "deep web" used by the media at all (though I won't deny that the media misusing technical words is entirely believable...)

[mintplant]

"Dark Web" is indeed the proper term, but it's been conflated with "Deep Web" in the media. See the section "Terminology conflation" in that Wikipedia article.

[Natanael_L]

It is a data silo by design. They want data to move in one direction, to them.