Comment by mxuribe
What you're referring to @j2kun is named a *social reader*. See: https://indieweb.org/social_reader I'm sure there other examples of software/clients besides those portrayed on indieweb.org too.
What you're referring to @j2kun is named a *social reader*. See: https://indieweb.org/social_reader I'm sure there other examples of software/clients besides those portrayed on indieweb.org too.