Fraser:
I'm about as knowledable as a chook about the costs involved in maintaining a web-site like this; but I assume that it has to be "maintained" in some way and your Administrative expertise should be compensated commensurate with the time involved (I suppose you could go off and take a few days' break with impunity).

Personally I'd be happy to pay an annual "Membership Fee" for the privilege of belonging and enjoying ...
... because there is no such thing as a free feed.

Say (?) AU$20.

Sorry - I don't have a Credit Card.