O&P discussion forums

O_and_P on Informed Consent: A dedicated group on IC, the UK's leading BDSM website. This is the busiest of the three O&P forums, and you do not need to be resident in the UK to join and use IC.
O&P board on TSR: A web board on TSR, the largest M/s community website.
O&P Page on Facebook: Has a discussion forum.
Ownership & Possession group on Fetlife: A dedicated group on Fetlife, with members from around the world.

Possession. Ownership. Consent. Responsibility. Respect. House. Service. Dignity. Authenticity. Rituals.

O&P (Ownership & Possession) is a new structure built from familiar D/s and M/s concepts, defined by the O&P Manifesto.

The O&P Wiki contains articles about O&P and related D/s, M/s, and BDSM topics.

You can also follow O&P on Twitter and on Facebook.