The ultra-anticipated mixed reality headset Magic Leap One was finally made available for public purchase earlier this month at $2295. The Helio web browser is also shipping on the platform, with documentation for the Helio SDK for declaratively creating 3D web content in XR. There are a lot of takes out there, but I've enjoyed Avaer Kazmer's hands-on developer review, "Magic Leap One: Vive for AR, Adario Strange's review of the Helio browser, and if you're into hardware guts, iFixit has a great teardown of the Magic Leap One.
The draft charter for the Immersive Web Working Group is currently under review. The Immersive Web Community Group that has been working on WebXR standards will now create a working group: a more formal process for pushing the WebXR Device API into a W3C proposed recommendation.
Nicole Mabry shares Four Kitchen's user research into the world of accessible WebVR, offering recommendations on designing spaces, narratives, and stories from their studies with WebVR on Cardboard and Daydream headsets.
Or Goldus from Halo Labs shares their path down the rabbit hole of entering the world of developing XR experiences for the web, with plenty of follow up resource links.