The Internet Archive now has every issue of Omni Magazine. You can read all of the issues online or download them in a variety of formats, including PDF, EPUB and MOBI. Don’t know what Omni was?
OMNI was a science and science fiction magazine published in the US and the UK. It contained articles on science fact and short works of science fiction. The first issue was published in October 1978, the last in Winter 1995, with an internet version lasting until 1998.
OMNI was launched by Kathy Keeton, long-time companion and later wife of Penthouse magazine publisher Bob Guccione, who described the magazine in its first issue as “an original if not controversial mixture of science fact, fiction, fantasy and the paranormal”. Before launch it was referred to as Nova, but the name was changed before the first issue to avoid a conflict with the PBS science show of the same name, NOVA.
The magazine was initially edited by Frank Kendig, who left several months after the magazine’s launch. Ben Bova, who was hired as Fiction Editor, was promoted to Editor, leaving the magazine in 1981. After Kendig and Bova, Editors of OMNI included Richard Teresi, Gurney Williams III, Patrice Adcroft, Keith Ferrell, and Pamela Weintraub (editor of OMNI as one of the first major standalone webzines from 1996-1998). Kathleen Stein managed the magazine’s prestigious Q&A interviews with the top scientists of the 20th century through 1998. Ellen Datlow was Associate fiction editor of OMNI under Robert Sheckley for one and a half years, and took over as Fiction Editor in 1981 until the magazine folded in 1998. The very first edition had an exclusive interview with renowned physicist, Freeman Dyson, the second edition with American writer and futurist, Alvin Toffler.
In its early run, OMNI published a number of stories that have become genre classics, such as Orson Scott Card’s “Unaccompanied Sonata”, William Gibson’s “Burning Chrome” and “Johnny Mnemonic”, Harlan Ellison’s novella “Mefisto in Onyx”, and George R. R. Martin’s “Sandkings”. The magazine also published original sf/f by William S. Burroughs, Joyce Carol Oates, Jonathan Carroll, T. Coraghessan Boyle, and other mainstream writers. The magazine excerpted Stephen King’s novel Firestarter, and featured a short story, “The End of the Whole Mess”. OMNI also brought the works of numerous painters to the attention of a large audience, such as H. R. Giger, De Es Schwertberger and Rallé. In the early 1980s, popular fiction stories from OMNI were reprinted in “The Best of OMNI Science Fiction” series and featured art by space artists like Robert McCall.
OMNI entered the market at the start of a wave of new science magazines aimed at educated but otherwise “non-professional” readers. Science Digest and Science News already served the high-school market, and Scientific American and New Scientist the professional, while OMNI was arguably the first aimed at “armchair scientists” who were nevertheless well informed about technical issues. The next year, however, Time introduced Discover while the AAAS introduced Science ’80.
You’ll have to click through issue by issue to get them all but at least the archive is searchable. The world was a very different place when Omni was being published and it should be interesting or at least nostalgic to look back at a different (albeit recent) era.