An interesting article on the Internal Revenue Code (IRC) and exemptions from federal income taxation in regard to a "charity" based affiliate marketing firm.

While the start of the article goes into what types of organizations are exempted from taxes and then the second half gives an example of affiliate marketing based charity style firm that operated as a charity, in theory, donating its' revenue from commissions to non-profit organizations. As the article explains the IRS didn't agree with them due to the donations being insubstantial compared to M.com's substantial benefits from their advertising partners. An interestering and educational read, especially if you're in the same court as the example "M.com"