Technical Writing Agencies
http://www.techwritingjobs.com/technical_writing_agencies.htm

Tech Writing Jobs

Abstract:

Most contract technical writers work through agencies. If you know anything about relational databases, you'll understand why this is so: just as the way to solve the problems of 'many-to-many' relationships between two tables is to create a third table, routing the relationships through it so that they become manageable, so, too, with tech writers and customers.