I am sorry. It appears that a GuideStar Premium account is needed. (Or the questions will need to be changed—specifically the time period of the first question.) Or maybe there is a research tool/engine that I’m not aware of.
Anyway, here is a little bit of headway:
Anyone, please feel free to continue. Anyone can edit the document 100%. (You will also be able to see other’s work in real time, which can always be reverted back.)
Why can’t I comment on some articles, such as http://effective-altruism.com/ea/hq/spreading_ea_messages_to_friends_including_giving/