David M. Ewalt worked at a digital magazine which is headquartered in San Francisco, and was first published in 1985 by who?
David M. Ewalt:  Prior to joining "Forbes" he worked at "Newsday", "InformationWeek" and "The Stony Brook Press". InformationWeek: InformationWeek is a digital magazine which conducts corresponding face-to-face events, virtual events, and research. InformationWeek:  It is headquartered in San Francisco, California and was first published in 1985 by CMP Media, later called CMP Technology.
CMP Media