Jeff Bezos, the billionaire founder of Amazon.com, and his wife, MacKenzie, have agreed to donate $2.5 million to help pass a same-sex marriage referendum in Washington State, instantly becoming among the largest financial backers of gay marriage rights in the country.

http://thecaucus.blogs.nytimes.com/2012/07/27/amazons-founder-pledges-2-5-million-in-support-of-same-sex-marriage/