Marketing Yourself as an Independent Technical Writer
http://www.school-for-champions.com/techwriting/techmarketing.htm

Kurtus, Ron
School for Champions
2000

Abstract:

Some technical writers go into business for themselves as freelancers or independent contractors. A number of those become successful enough to form a writing company and hire a staff of other writers. In either case, the technical writer who is in business for him- or herself must continually perform marketing to maintain a steady income.