http://smile.amazon.com/ch/04-3545228
Each quarter, the AmazonSmile Foundation makes donations to eligible charitable organizations by electronic funds transfer. Donations are made based on the NEMPAC Community using Amazon Smile to make their purchases.
When first visiting AmazonSmile, customers are prompted to select a charitable organization from almost one million eligible organizations. In order to browse or shop at AmazonSmile, customers must first select a charitable organization. For eligible purchases at AmazonSmile, the AmazonSmile Foundation will donate 0.5% of the purchase price to the customer’s selected charitable organization.
The AmazonSmile Foundation is a 501(c)(3) private foundation created by Amazon to administer the AmazonSmile program. All donation amounts generated by the AmazonSmile program are remitted to the AmazonSmile Foundation. In turn, the AmazonSmile Foundation donates those amounts to the charitable organizations selected by our customers. Amazon pays all expenses of the AmazonSmile Foundation; they are not deducted from the donation amounts generated by purchases on AmazonSmile.