1 - Feature articles on ATC - how the world looks from their point of view, how they feel about GA and what PPLs can do to make life easier for everyone
2 - As above, but AFIS and A/G
3 - Experiental stuff by experienced pilots, but not in the style of 'lectures on paper', e.g. more like Dick Collins in Flying where navigating around a squall line or someting similar is described by an actual flight being narrated and the critical decisions and decision points being explained - these could be written ad infinitum and are very valuable