This is a new thing I’ve been working on. Mostly beginner-focused guide for beatmania IIDX (AC Bistrover and CS Infinitas) to serve as an introduction to the game. I’ve also been adding a section for DP, which — as far as I know — is the only English resource on double play, surprisingly. I’ve also collected a bunch of articles I’ve written in the past and organized them there.
Go here, tell your friends: https://iidx.org