Every time I go on vacation, I need to verify at least twelve postal addresses belonging to friends who move often or live in multiple places. I should develop some kind of web registry where people can update their information, but where not just anyone can read it. I would not recommend posting them as comments, as I am presently immersed in a shooting war with various spammers who want to hock pills and stolen software to my esteemed readership.
In the mean time, friends anywhere are encouraged to email me their addresses (to milan dot ilnyckyj at politics dot ox dot ac dot uk). If I get more than twenty requests, I will probably only fill the first twenty. After all, I have already sent about eighteen.