[rchaud]

> I visited the home pages of those sites. I'm not sure how to open up stories if I were an internet user just passing by.

That's probably by design. The stories are meant to be discovered while searching on Google. Of course a site owner should have the common sense to include a separate section on their site for stories. In most CMSs, It would be as simple as setting a 'web stories' category, then adding a link to the navigation that takes them to a dynamically generated page, something like "example.com/web-stories/"