Nielsen, J. Usability Engineering. Academic Press: Boston, MA, 1993. Chapter 5 Usability Heuristics
J. Nielsen, "Heuristic Evaluation". In Nielsen, J and Mack, R.L., editors, Usability Inspection Methods. John Wiley and Sons, Inc. 1994.
"Heuristic Evaluations" in the Usablity Methods Toolbox
Usability Toolkit: Checklists and Heuristic Evaluations contains several heuristic checklists for different kinds of projects.
Jakob Nielsen on Heuristic Evaluation, including "How to Conduct a Heuristic Review" and "Ten Recommended Heuristics"
Heuristic Guidelines, Cognetics Corporation
Heuristic Evaluation - A System Checklist, by Denise Pierotti, Xerox Corporation
Evaluating the Usability of Documentation - Heuristic Inspections for Documentation by Vesa Purho in Usability Interface, April 2000
Heuristics to Evaluate Online Help By Donn DeBoard Usability Interface, January 2004. Includes worksheets in downloadable form.
Heuristic Evaluation Activities, by Denise Pierotti, Xerox Corporation
Conducting Heuristics Evaluations, Cognetics Corporation
Nielsen J. & Molich R, (1990), Heuristic evaluation of user interfaces, Proceedings of the ACM CHI '90, pp. 373-80
Dumas, J., Virzi, R. & Sorce, J. Expert Reviews: How many experts is enough? Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting, San Diego, CA, October 1995, 309-312
Kantner, Laurie, Shroyer, Roberta and Rosenbaum, Stephanie. Structured Heuristic Evaluation of Online Documentation. Heuristics for navigating through and finding content. Keywords heuristic evaluation, online documentation, usability, online help.