This is a list of some potentially useful resources for information, stepfiles, and other things that may be interesting for rhythm game players. Feel free to request any sites/servers you’d like added on the Forums.
Club Fantastic: A quick and easy way to get into StepMania/ITG at home. Self-contained game installer with free packs of songs, which may be streamed online with no risk of take-downs.
DDRCommunity: Up-to-date news on all things pertaining to Dance Dance Revolution.
IIDX.org: A compendium of info for BeatMania IIDX, including a guide for beginners.
ITG Packs: A comprehensive spreadsheet and stepfile host, containing packs from 2017 to the present.
https://docs.google.com/spreadsheets/d/1F1IURV1UAYiICTLhAOKIJfwUN1iG12ZOufHZuDKiP48/htmlview
LIFE4: A player-run Dance Dance Revolution ranking system with challenges and events.
Pop’n Music Database: An up-to-date fansite for the Pop’n Music series, featuring art book scans, individual game info, and character info and animations.
https://popnmusicdatabase.neocities.org
RemyWiki: A veritable font of info for all things Bemani.
https://remywiki.com/Main_Page
Zenius -I- Vanisher: A music-gaming news site and forum, as well as a place to find stepfiles and arcade and machine locations.