I have currently working on a desktop application which I intend to make available for purchase. Are there any free or cost effective services/websites which I can use to sell my software and collect payment?
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            Here's one a colleague once used: http://www.shareit.com
I can't comment on the price/cost effectiveness.
                  M4N
                   2009-01-03 13:20:45
                
              
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            You might like the topics "Which payment processor should I use?" near the bottom of http://discuss.joelonsoftware.com/default.asp?W1341
                  ChrisW
                   2009-01-03 13:27:29
                
              
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            You should check out Paypal's new(ish) web interface. You just route your users through a set of payment collection pages after collecting the order information. It does not require that a user has a Paypal account. This is the one that I would use.
Another popular option is Digital River. You'll probably be interested in the Element5 option for small businesses.
                  Mark Brittingham
                   2009-01-03 13:37:27