scuttlebutt.nz is maintained: https://github.com/ssbc/ssb-handbook %lJsDWwn.... it has our newest documentation work and explains the overall philosophies of ssb, with quotes and links to relevant discussion threads.
scuttlebot.io is lightly maintained: https://github.com/ssbc/scuttlebot.io %hg8wG6x.... it has some technical references, code samples, how-to guides and articles.
ssbc/docs (& the gh-pages of other ssbc repos) are lightly maintained or unmaintained. they have similar content to scuttlebot.io, and some content that is unique to them.
the ssbc.github.io site is built from multiple repos (using https://github.com/ssbc/ssbc-sitegen), and we haven't always rebuilt the gh-pages branches when updating those repos, so some things there may be out of date. scuttlebot.io is built from a single repo but includes content copied from module readmes, which is also not great for keeping up to date.
what i would like to do is add redirects in scuttlebot.io or ssbc.github.io for content that has been migrated into scuttlebutt.nz, and add redirects for the module readme pages to github or git-ssb-web. then see what is left and do something useful with it without breaking links.