Mike Alger has some great videos and write ups. Watch this first and see if you'd be interested in more of what he has to say: https://www.youtube.com/watch?v=id86HeV-Vb8

I made this first article to create a foundational reference, an intro of the basics.

What kind of topics would you be interested in?

Googles design guide for cadbboard explains a lot of the basics and some great insights. https://www.google.com/design/spec-vr/designing-for-google-cardboard/a-new-dimension.html

Their awesome Android app, Cardboard Design Lab, is the best i've seen besides from Mike Algers videos about UI design in VR https://play.google.com/store/apps/details?id=com.google.vr.cardboard.apps.designlab&hl=en USTWO has a basic walkthrough of what's in the app at https://ustwo.com/blog/designing-for-virtual-reality-google-cardboard/

Beau Cronin has been writing some great stuff. https://medium.com/@beaucronin

I responded to his piece on skeuomorphic v. flat in VR, here: https://medium.com/@beaucronin/speculations-on-neuro-motivated-design-for-vr-3f26685c5c40#.v5n94gt82

Depends partly on what kind of VR you are talking about i guess. WebVR, cinematic VR, games, apps – all have their own challenges. Josh Carpenter's talk is a good one to check if you haven't already. https://youtu.be/ZOaOYTOpwyM

I read this article this morning too.

Check out the posts I've recommended on Medium, there's a ton there.

Google also put together a great Android app to teach people the basics.

VR UX https://www.youtube.com/watch?v=n3b8hZ5NV2E

Last week's Android VR talk at Android BBQ https://twitter.com/AndroidDev/status/657699409644359681

I've recently shared an interesting study on designing for VR on Twitter: https://twitter.com/kkga_/status/654943690029453312