On a wider point, I often see Facebook cited as an example of the &#x27;Open Web&#x27;. However a lot of it&#x27;s content is in Facebook groups, which requires a FB registration and membership to access. It&#x27;s not open or publicly searchable. I can&#x27;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.