I seem to recall having the ability for Plone members to bookmark content in a Plone portal. Is this a feature that got lost over time or am I imagining this? Maybe it was an add-on...
In older (< Plone 3?) I think they were called favorites but got removed. Maybe collective.favorites is a re-implementation of it for higher Plone versions, but the latest release is from half a year before Plone 5 release, so that might need some work.
Hi, there is also collective.portlet.mybookmarks.
We are working on a Plone 5 version here (not yet released and finished, but it works)