If authors of articles published in the BGJ republish them on the internet, or authorise such republication, they are asked to include an acknowledgement of the original publication in the Journal.
A free copy of the BGJ is sent to BGA non-members who contribute articles accepted for publication.
These are defined in the Guidelines & Style Rules for Contributions to the British Go Journal [1].
Links:
[1] http://britgo.org/bgj/guidelines.html