Welcome to our forum.
Sounds like you have a very positive poly relationship between the three of you; that is always encouraging to hear. I think even more people would be poly if they even realized such a thing existed!
You should have many opportunities to mix and mingle with the good people here. Just have a look at our various threads and see what calls to you. Don't hesitate to post any thoughts or questions you may have.
Glad to have you onboard.