I seem to recall that about three or four years ago there was a need for some money to pay for the site and that the participants were willing and able to make a fairly modest donation to raise the necessary money. I would prefer to try that route again rather than clutter up the site with ads. I think that a typical donation was in the order of $25, not a lot of money for a site that gives so many of us a lot of pleasure.
On a personal note, I have a US dollar account in Florida so even though I'm Canadian, it was easy to send a cheque. Other non-Americans can use a bank money order or some similar financial instrument