Which underground communities do you visit (be it games, art, music, etc.)?

Don't feel bad if they don't overlap 100% with this space: as an example I frequently am on intfiction.org, as they are ace and fresh and innovative, even though they yet have to receive the Gospel of Free Software.

Other places I like:

• www.mastodon.art and scroll public timeline
• /p/ (for photography)
• tooling specific forums like AGS forum