Linux Fund is an organization that has been raising money and making donations to Free and Open Source Software (FOSS) projects since 1999. IRS 501(c)(3) status was granted to Linux Fund in August 2007, allowing direct solicitations to individuals and charitable foundations. Prior to receiving the 501(c)(3) letter, the principal funding source had been an affinity credit card program with credit cards bearing a graphic of Tux, the Linux Penguin. Visa cards are currently offered in the US by US Bank;