- Diffusion of innovations;
- Evolution of norms;
- Evolutionary epistemology;
Looking at the literature on norms and innovations it is hard to avoid the conclusion that many of those involved often don't see the bigger picture of cultural evolution.
The overall picture is reminiscent to biology before Darwin. The topic was fragmented. Darwin brought a theoretical framework that unified it all.
Even among those who understand cultural evolution, Blackmore (1999) and Boyd and Richerson (1985) once proposed that only imitation and teaching were significant - and that these should be the main objects of study for cultural evolution. Yet culture that is transmitted in other ways mostly obeys the same rules. I think these folk have now mostly retracted their earlier opinions on this topic.