I built https://www.kontxt.io https://www.kontxt.io for this. You can @mention in comments to send emails with deep-links like this: https://www.kontxt.io/demo

I built https://www.kontxt.io https://www.kontxt.io for this. You can @mention in comments to send emails with deep-links like this: https://www.kontxt.io/demo.html?kontxt_context_id=tJQebzVav-Ea-e9aAVthRy-tHtQUJ6TZVvCrBAGq3JrSF&kontxt_comment_id=1243 https://www.kontxt.io/demo.html?kontxt_context_id=tJQebzVav-... There's also google-doc like sharing controls. And it's connected to a CMS with folders and groups so it's easy to stay organized and up to date.