Is there a way I can use php to automaticaly find a product from Amazon.com and show it's advertisement? Is there also a way I can get information from products on Amazon.com with PHP?
Yes, using the nusoap api with WDSL from amazon, you can get anything. However, strap your boots on, I think the docs for 4.0 are lousey. 3.0 at least ya can depend on consistant objects returned. 2.0 was eliminated recently. They say 3.0 is gonna be available for the "fore seeable future". Try and define that. So if you dive in, use 4.0 and deal with the quarks. http://www.amazon.com/gp/aws/sdk/104-9878139-4115161?v=2005-10-05&s=AWSEcommerceService
even easier! use PEAR::Webservices_Amazon class!! i use it to retrieve data from thousands of books daily