http://en.wikipedia.org/wiki/Bank_card_number http://en.wikipedia.org/wiki/List_...

		omarchowdhury on Oct 9, 2011 \| parent \| context \| favorite \| on: Ask HN: Where/How do I learn about credit card pay... http://en.wikipedia.org/wiki/Bank_card_number http://en.wikipedia.org/wiki/List_of_Bank_Identification_Num... http://en.wikipedia.org/wiki/Interchange_fees