I dunno about anyone else, but reading Japanese sites is way beyond me, yet I'd like some idea of what's "in" and what's "out" over there. When I get the chance to go over there, it'd be good to have some idea of what people are into, pop culture wise.
Things like major stories in the news, fashion trends, music charts, box office charts, sporting events, hit TV shows, new gadgets, even celebrity stuff (who're the big names in Japan?); the kinds of things we hear about every day on the news, online, in magazines, from friends, and so on.
I think it'd offer an interesting insight into the culture, give you some ice-breakers and fillers when meeting Japanese people, and generally be an interesting read. I don't know if such an English-based site exists, but I like the way JPod does things, and if it were possible to feature some sort of weekly/bi-weekly e-zine of this nature I reckon it'd be great, and add a whole new depth to this site (which is so feature-rich already). It could even have an accompanying lesson to take your conversational skills to the contemporary next level
Anyway, I'm just throwing this out there - this sort of thing could be very time consuming, and I might be the only one to find it interesting, but y'know