Here are several articles i've collected over time about pricing:

http://dl.getdropbox.com/u/113637/softwarepricing/pricing%20...

http://dl.getdropbox.com/u/113637/softwarepricing/How_Do_You...

http://dl.getdropbox.com/u/113637/softwarepricing/Econometri...

http://dl.getdropbox.com/u/113637/softwarepricing/VBSP.pdf

http://dl.getdropbox.com/u/113637/softwarepricing/PricingMet...

http://dl.getdropbox.com/u/113637/softwarepricing/SW_Pricing...