[dbodin11]

I built 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-...

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.