The LoC might be published in the next issue: some fanzines consisted almost exclusively of letter columns, where discussions were conducted in much the same way as they are in internet newsgroups and mailing lists, though at a relatively slow pace.
During the 1970s and 1980s, some fanzines—especially sercon (serious and constructive) zines devoted to science fiction and fantasy criticism, and newszines such as Locus—became more professional journals, produced by desktop publishing programs and offset printing.
Well-known semiprozines include Locus, Ansible, The New York Review of Science Fiction, and Interzone.
Amateur press associations (APAs) publish fanzines made up of the contributions of the individual members collected into an assemblage or bundle called an apazine.
Some APAs are still active as hardcopy publications, and some are published as virtual "e-zines", distributed on the internet.