I’m interested in following the progress on the Wolfram Physics Project as presented on wolframphysics.org. But I’m not as interested in other Wolfram Language/Cloud/Mathematica/etc. info. Is there some mailing list or RSS feed I can subscribe to so that I can hear about new articles, preprints, etc. related to the physics project, but not other Wolfram marketing/updates?
I would like to subscribe to an RSS feed or specific list, too.
We are working on introducing a regular progress bulletin, that you will be able to subscribe to, within the next week or so! Also, I’m intending to start posting the results of our various working sessions onto community very soon, so that you guys will be able to follow our progress here, if you’d like 
If you subscribe to Wolfram Physics twitter feed you will stay on the top of all updates:
I won’t do Twitter. Too much fascism. If you come up with an RSS feed, let us know.
There are a few different services online that convert twitter accounts to RSS feeds, so you can use e.g. https://twitrss.me/twitter_user_to_rss/?user=wolframphysics
Maybe a little late to the party, but for anyone still interesting in subscribing to updates from the Wolfram Physics Project, you can sign up for our ~weekly news digest → The Wolfram Physics Project: Finding the Fundamental Theory of Physics
We include
- recent relevant tweets from Wolfram Physics, Jonathan Gorard, Max Piskunov, and Stephen Wolfram
- recent publications as listed on Physics—Stephen Wolfram Writings
- links to recorded livestreams and working sessions
- other relevant information about upcoming events and programs