Stackkup focuses on organizing by context (e.g. articles on a specific topic) so that content curation could work best without having to assign "workspaces". Ta

Stackkup focuses on organizing by context (e.g. articles on a specific topic) so that content curation could work best without having to assign "workspaces". Tags can already be its own workspace. On the other hand, Workona, is more on workflow collaboration. Their extension is pretty neat!