Sian,I use Facebook a lot. I post here about the loss of my son, and my feelings, but Carers UK and my friends here have no idea of the depths of how deep the pain is. Through Facebook I have met other bereaved mothers,and we can laugh and cry together in a way that only we would know how.Two mothers I am particularly friendly with live in USA and Greece. We just happen to have a lot in common surrounding the death of our sons and our lives afterwards.
I agree with Scally about local communities. I belong to a couple of Facebook groups for local issues,and one in particular is getting the Council and Welsh Assembly listening.
Good luck.