I'd love to see some analysis of the current cost-effectiveness of corporate campaigns. I've seen some takes on the Forum (for example here) that raise concerns about corporate campaigns, but I haven't seen a substantive investigation. Depending on how it goes, it might change my vote next week. 

This might seem obvious, but I'd love someone to write about the most promising global health interventions. Specifically, I don't know what kind of things we could achieve with $100m which would be better than just $100m to GiveWell's top charities. (For example, maybe some of these technologies could be created for $100m).