Even though I had gotten tired of Facebook in the past, it seems like that is where many of you are at.
The group is:
https://www.facebook.com/groups/rhnegatives/
Click on “Chats” and you will see several depending on your specific areas of interest (and a chat for each ABO type: O-, A-, B- and AB- chats).
For Rh- Dating, you can still join:
It’s all free.