Dave left Stanford Research Institute over 20 years ago to become a freelance writer, and he's been writing ever since. His portfolio is a Who's Who of Silicon Valley companies.

Dave specializes in technical publications, but he has also authored several books and magazine articles on topics ranging from acid rain to stress management.

In 1996, Dave founded VRToolworks to produce a special camera mount for shooting QuickTime VR photos, and he's produced several QT-VR movies.