It's pronounced "zeen." The word is derived from fanzine - which has a long history of self-published periodicals sharing info for like-minded communities. Or, as Zine Wiki says, "an independently- or self-published booklet .... Zines are customarily created by physically cutting and gluing text and images together onto a master flat for photocopying, but it is also common to produce the master by typing and formatting pages on a computer. The end product is usually folded and stapled. Zines can be printed and bound in any manner. Offset printing is a relatively common alternative to photocopying, though there is some controversy among zine writers as to whether professionally printed products may be defined as zines."