Factsheet Five is a periodical originally published by Mike Gunderloy of Albany, New York. It consisted almost exclusively of reviews of privately produced printed matter. In the early 1990s, it was the most important publication in its field, heralding what would eventually be called zine culture. (Compare to the periodical Sound Choice in the cassette culture.)
Factsheet 5 website is now at Factsheet5.org (http://www.factsheet5.org)
FactsheetFive is a periodical originally published by Mike Gunderloy of Rensselaer, New York.
Prior to the wider adoption of the web and e-mail around 1994/5, publications such as FactsheetFive formed a vital directory for connecting people of like-mind; for instance, in the queer 'zine culture of the late 1980s and early 1990s.
Jerod Pore took the bits that generated the paper FactsheetFive and produced FactsheetFive - Electronic, which was one of the first zines to use the Usenet newsgroup alt.zines.
Most people who know anything of Mike Gunderloy know his creation even better: FactsheetFive held for a number of years the uncontested crown in keeping track of "small-press" publications, and by small press I mean a guy stealing time on the office copier.
FactsheetFive produced an issue about once every two months, the central repository of reviews about zines, records, and other creations firing out of homes and apartments all over the country.
FactsheetFive went on for a while without him, and it's more sad to me than anything else, although the people who worked on them sweat just as hard as any normal editor in trying to put together the magazine.