NVC World:          Centre for Nonviolent Communication 
NVC Australia:      NVC Australia 
NVC South Australia Facebook group

Some Australian trainers:   Dorset Campbell Ross at NVC Works (Byron Bay)
                                                              Cate Crombie at Meta CommuniCate (Brisbane)
                                                              Shari Elle at The Communication Group (Sydney)
                                                              Linda Rysenbery at NowRelate (Sydney)
                                                              Paulette Bray-Narai at ExpressPeace (Byron Bay)

For more Australian trainers/trainings, click on the NVC Australia link above.

Courses
If you are looking for more than a weekend course, there are opportunities for amazing development, coaching and personal growth.
Here are two that I have done:
Embodying NVC Consciousness training
Parent Peer Leadership Program

Stand by also for an amazing opportunity brewing for an International Intensive Training in Bali in 2017!