Lots of brochures where published in a digital way (also printed and sent out) when the Internet took over. Just click on the image to get a full sized view. The brochures deal with some specific themes on the subjects of Mail-Art, Networking and Fluxus.
source: http://www.brokenpencil.com/features/the-undying-art-of-mail We used to send mail, and there used to be an underground movement of artists who made mail art. Laura Trethewey tracks down the artists who made the postal system an integral part of their work to find out how mail art is faring in the age of the Internet. By
Some years ago I was doing research on where the chinese mail-artists are?