Well you're among friends here, so you should be able to build that network you envision. Just keep checking out various threads, participate in the ongoing conversations, and start your own threads as desired.
Poly relationships are challenging but rewarding. We have many resources you can tap into, such as a Life stories and blogs board
, and a Dating & Friendships subforum
which is useful for striking up friendships at least.
I hope you'll feel at home here, and find what you seek.