To start with, you can reach us on Pleroma (i.e. Mastodon/ActivityPub-compatible) at oksocial@morph.oksocial.net. (That's not an email address, although it certainly look like it. It's OKSocial HQ's Pleroma account; you can send a message to it after you sign up for an account of your own ...)

You can also reach your local administrator on any OKSocial Pleroma server as admin.

If you're having trouble registering or logging in to an OKSocial server, please email us directly.

We do have an account on Twitter @OKSocial_HQ and also a facebook page; we don't follow either of those closely, so for the moment email is a better choice.