Creating rationalist communities -- a work that has to be done offline, by different people at different places, but we can coordinate and share success stories here.

Rationality curriculum -- I would love to read a progress report from CFAR. When they have some materials that other people can use, that's again a work for everyone in their own city.

Other than that, I think we should try to apply rationality in things we care about, whatever that is. For example, I am interested in computer programming: I would like to know whether some programming languages are really better than others, or whether that's just an affective death spiral. As a reader, I think that reading about most topics where the author knows what they talk about and tries to be rational, would be interesting.