- Except media (i.e. Wikimedia Commons), we lack of any systemic work
on improving content. (I don't count particular initiatives, like cooperation between Wikipedia in X language and University in X country.)
Actually, I believe we lack of any systemic work on improving content on Commons as well. For instance, I travel a lot and I have (and I could have done) pictures of obscure places (including some in Serbia) which are completely underrepresented on Commons. I have never been approached by anyone, nor suggested to report on some pages, in order to make some pictures of some specific environments I would likely visit soon. I suggested it myself a couple of times and the general reaction was that I should not bother.
Cheers Yaroslav