"Fair use offers an extraordinarily important opportunity for educators, researchers, and others to make reasonable and limited uses of copyrighted materials. Clipping, cutting, pasting, uploading, posting, and many other activities that are common at the university may be copyright infringements or may be within fair use."

The Fair Use Checklist is quite nice.

Linux users can take advantage of a number of documentation tools, including both free or open source software (FOSS) and proprietary software. All of them give technical writers the ability to author and publish professional documentation.