Marketing psychologist Nick Kolenda has published a fairly extensive list of behavioral pricing techniques. His list of 50 well-organized and clearly explained techniques include: pricing psychology theory, six perception techniques, reference pricing, price fluency techniques, reference price techniques, techniques tied to the pain of paying, and discounts.
Nick provides information about the research behind each technique and a downloadable PDF. The site also includes a number of marketing psychology-related guides on topics ranging from advertising psychology to choice psychology to color psychology.