Jurek7, thank you for a calm contribution, to which I would like to respond.But why not be like Zooquaria? It is sent paid to subscribers, but it makes the content available on the website...what is the problem of linking the pdfs on the website? With half year delay if you fear losing subscribers, like National Geographic does nowadays
Zooquaria is the magazine of a large, international organisation (EAZA) which can support the lack of revenue-generation caused by free online availability.
Zoo Grapevine is created by a small team of people who put their own time (and money, in Tim's case) into creating a quarterly magazine to the highest standards we can meet. Nobody is obliged to like it; it is our labour of love and our independent contribution to the wonderful world of zoos and aquariums.
Nevertheless, I think there are things that can be done, when our limited resources allow it. For example, some issues of the magazine have now sold out - so putting their content online would be worthwhile. Indeed, there is much I would like to do...if only I had Zooquaria's resources and staff.