Dear John,
When you follow our links to Amazon.com on any page with an Amazon logo  , OCW will receive up to 10% of the price of any purchases you make during that visit. This will not increase the cost of any of your purchases.
Links within OCW content pages go to the US Amazon site.
To support OCW through Amazon sites in other regions, follow the links below:
Happy shopping and thanks!
Sincerely,
The MIT OpenCourseWare Team
P.S. Please also consider bookmarking our links for quick access to these Amazon sites. | 
