I would, for example, suggest a (sub)category called “Operating Systems”, there are already some threads out there which relate to this topic: Stock Android (AOSP) experiences, Future Android Version for the Fairphone, Poll: Future Fairphone OS development. (As subcategory for Software and Apps)
Also I suggest a (sub)category called “Fair Products”, we have been discussing the Fair Mouse, Fair Trade… (As subcategory for Fairphone Café)
What do you think about these suggestions?