

- Is Your Message Getting Through?
By WordsWork, a professional writing/consulting agency. This site discusses a general audience's reading level from a business marketing perspective.
- Tips for the Next Millennium
Written by George Hayhoe of George Hayhoe Associates. He offers pragmatic tips on how to assess audiences accurately, and includes some common errors writers commit in judging an audience.
- Audience and Tone
The University of Victoria's Writer's Guide operates this extensive site covering numerous aspects of essay writing. Though this selection focuses primarily on scholastic writing, it still provides a helpful discussion of audience awareness.
- Online Technical Writing: Audience Analysis
By David A. McMurrey. An extremely thorough treatment of audience, even though it's tailored for online writers.