Facebook for music educators

Here are some of the groups that I follow on Facebook:
www.facebook.com/groups/banddirectors
www.facebook.com/groups/musicpln
https://www.facebook.com/groups/IBAElementaryAffairs/
https://www.facebook.com/groups/328973607167601/
https://www.facebook.com/groups/NEIBA/
https://www.facebook.com/nafme/
https://www.facebook.com/MusicTeacherResources4U/
https://www.facebook.com/BandDirectorsTalkShop/