Google Plus communities related to Chrome OS and Chromium OS

You might also find these this G+ communities interesting:
  • Chromium OS -?Community of hackers, testers, developers, or those using other builds of Chromium OS.
  • Chrome OS -?chrome, chromebook, chromebooks, Samsung, Acer, android, google, Pixel, HP Pavilion, Lenovo, chromebox, chrome releases, chromecast
  • Chromebook Users -?Tips and Hints from REAL users
  • Crouton Users -?crouton: Chromium OS Ubuntu Chroot Environment