I just saw my first non Moodle partner related advert on Moodle cloud and it was something about retirement, or money or similar and it made me wonder how the advertising is done.
I can imagine there might be a whole world of teacher related products i.e. the type of outfits who go along to exhibitions like BETT who would pay good money to have their names appear in front of so many educators.
Also would it be possible to set up a page that did an occasional report on MoodleCloud stats (I mean the whole thing not a particular instance/site) as a way of showing off how popular it is? Like with the stats for Moodle.org