Hi, I am in the middle of writing a small website in haskell, and am at the point of investigating a payment processing solution. Does anyone have any experience? As far as I can see, there aren't any libraries on hackage. I am strongly considering Google Checkout, since then I don't have to deal with credit cards directly and can just let google do it. So I am considering starting a hackage library for google checkout, anybody interested in helping out? I think xml-enumerator with http-enumerator should work well. I have been thinking about the API such a package should have, and I am currently leaning towards a combinator approach like blaze. The google xml schema for items [1] has so many optional parts that if we try and define a record, it will have a ton of Maybe's in it. Generating the xml using a combinator approach seems better. But this would only be my second library on hackage, so any suggestions for how you think the API should look are appreciated :) Thanks, John [1] - http://code.google.com/apis/checkout/developer/Google_Checkout_XML_API.html#...