The Homebrew Computer Club Newsletter was one of the most influential forces in the formation of the culture of Silicon Valley. Created and edited by its members, it initiated the idea of the Personal Computer, and helped its members build the original kit computers, like the Altair. One such influential event was the publication of Bill Gates's Open Letter to Hobbyists, which lambasted the early hackers of the time for pirating commercial software programs.
The first issue of the newsletter was published on March 15, 1975, and continued through several designs, ending after 31 issues in December 1977. The newsletter was published from a variety of addresses in the early days, but later submissions went to a P.O. box address in Mountain View, California.