30 Facebook Groups in the Virtual Reality Media Alliance in descending order of membership size.

1. Silicon Valley Global Network
https://www.facebook.com/groups/109971182359978/
84,151 Members (October 9th 2017)
84,908 Members (March 14th 2018)

2. The Matrix of knowledge
https://www.facebook.com/groups/The.Matrix.of.Knowledge/
67,454 Members (October 9th 2017)
67,469 Members (March 14th 2018)

3. SteamVR
https://www.facebook.com/groups/htcvive/
17,890 Members (October 9th 2017)
21,431 Members (March 14th 2018)

4. Gear VR, Oculus Rift, HTC Vive, Playstation VR, Daydream, Virtual Reality https://www.facebook.com/groups/gearvr/
17,758 Members (October 9th 2017)
19,045 Members (March 14th 2018)

5. Oculus Rift Creative Community
https://www.facebook.com/groups/oculuscreative/
12,792 Members (October 9th 2017)
13,056 Members (March 14th 2018)

6. Viveport and The Virtual Reality Media Alliance (VRMA) https://www.facebook.com/groups/vrmai/
9,935 Members (October 9th 2017)
10,095 Members (March 14th 2018)

7. Neurophysics+
https://www.facebook.com/groups/IFLNeuro/
9,353 Members (October 9th 2017)
9,370 Members (March 14th 2018)

8. Playstation VR https://www.facebook.com/groups/playstationvr/
6,398 Members (October 9th 2017)
8,990 Members (March 14th 2018)

9. VR & AR — Software only https://www.facebook.com/groups/vrswonly/
4,062 Members (October 9th 2017)
4,546 Members (March 14th 2018)

10. XR: MR, AR, VR + AI + Blockchain
https://www.facebook.com/groups/HololensAR/
3,828 Members (October 9th 2017)
4,115 Members (March 14th 2018)

11. Self-Aware Networks: Computational Biology, Neural Lace
https://www.facebook.com/groups/neomindcycle/
2,095 Members (October 9th 2017)
2,475 Members (March 14th 2018)

12. San Francisco Virtual Reality SFVR
https://www.facebook.com/groups/sfvrtech/
2,044 Members (October 9th 2017)
2,263 Members (March 14th 2018)

13. ARkit // Apple Augmented Reality Kit // WebAR // News & Dev https://www.facebook.com/groups/arvrweb/
869 Members (October 9th 2017)
1,454 Members (March 14th 2018)

14. Volumetric Video VR AR Professionals: Point Cloud, 3D Mesh, Videogrammetry
https://www.facebook.com/groups/volumetric/
242 Members (October 9th 2017)
737 Members (March 14th 2018)

15. Social Innovators: VR, AI, Blockchain
https://www.facebook.com/groups/socialvrai/
642 Members (October 9th 2017)
821 Members (March 14th 2018)

16. VRLA 2018
https://www.facebook.com/groups/1875581072656133/
363 Members (October 9th 2017)
463 Members (March 14th 2018)

17. ARcore, Daydream, Tango, Mobile AR & VR
https://www.facebook.com/groups/daydreamvirtualreality/
292 Members (October 9th 2017)
393 Members (March 14th 2018)

18. ARcore // Android AR VR // Google // News // Developers // Artists
https://www.facebook.com/groups/arvrcore/
73 Members (October 9th 2017)
179 Members (March 14th 2018)

19. Magic Leap
https://www.facebook.com/groups/magicleapglasses/
42 Members (October 9th 2017)
148 Members (March 14th 2018)

20. AR VR Professionals — San Francisco, Bay Area & Silicon Valley Global
https://www.facebook.com/groups/ARVRPro/
73 Members (October 9th 2017)
137 Members (March 14th 2018)

21. Blockchain Cryptocurrency ICO WhitePaper #StudyGroup
https://www.facebook.com/groups/blockchainwhitepaper/
12 Members (October 9th 2017)
134 Members (March 14th 2018)

22. LucidCam 3D 180 VR Point Clouds
https://www.facebook.com/groups/lucidcam/
69 Members (October 9th 2017)
102 Members (March 14th 2018)

23. Death Star Robot
https://www.facebook.com/groups/deathstarrobot/
69 Members (October 9th 2017)
97 Members (March 14th 2018)

24. CES Consumer Technology Association
https://www.facebook.com/groups/cesvegas/
80 Members (October 9th 2017)
80 Members (March 14th 2018)

25. Autonomous Vehicles & Augmented Reality
https://www.facebook.com/groups/policedrones/
22 Members (October 9th 2017)
77 Members (March 14th 2018)

26. The Facebook Group Registry: Science, Technology, Engineering, Art, Math
https://www.facebook.com/groups/groupregister/
57 Members (October 9th 2017)
65 Members (March 14th 2018)

27. Neurohaxor
https://www.facebook.com/groups/neurohaxor/
New 61 Members (March 14th 2018)

28. Facebook Spaces
https://www.facebook.com/groups/xrspaces/
New 27 Members (March 14th 2018)

29. NeurotechSF
https://www.facebook.com/groups/neurosf/
New 9 Members (March 14th 2018)

30. Investing News Science Technology Business
 https://www.facebook.com/groups/investnews/
2 Members (October 9th 2017)
4 Members (March 14th 2018)