I have with me a script that enables user to purchase a 'link' after paying through Paypal.
I want you to make the following changes:
(1)Using java classes of Konakart (a java shopping cart) add 'Moneybookers" as a payment option to this interface. So user can purchase a 'link' after paying through paypal or moneybookers. If you know PHP then you can use the moneybookers payment class from other shopping carts like OSCommerce or Zencart....
(2) Connect to "Alexa Web Information Service" and retrieve data about backlinks to the input URL. Please refer "[url removed, login to view]"
(3) Using the function you created for point 2, as well as existing functions (that I have with me) to retrieve backlinks data from Yahoo and SEOMOZ, prepare a simple report on screen which can be converted into a HTML/PDF report as well.
(4) The parameters for getting Alexa data from Amazon Web services, should be stored as configurable parameters in the application that you create. Similarly, there are parameters for SEOMOZ which also should be configurable from admin.
Simple work for a good coder.