A while back I stumbled across an English-speaking service for booking minshukus (traditional bed & breakfast places) in Japan. These are often run by old Japanese grandmas who don't speak any English, but are wonderful (and cheap) places to stay, so this service looked like a godsend for booking up accommodation. But do think I can find it?

Anyway, does anyone know of a decent service to book minshukus? This was a telephone service I think, so an online one would be even better.