As I did
last year with L.A.Con IV, I've set up a temporary
friends group of LJers attending Nippon 2007 - and again I've made it public.
Also as last year, while I'm starting with people already on my friends list, I will be adding others who are posting from or about Nippon 2007 - though probably dropping most of them again in a few weeks once Worldcon has receded into the distance. However, if you are one of the new additions, friending me back or writing interestingly enough in your LJ that I have to keep reading it are probably good tactics for keeping you on my friends list.
If you spot any interesting LJs, LJ feeds - or indeed other web resources - about Nippon 2007, please feel free to comment here to tell me about them.