Amazon.com introduced Alexa Web Information Service and updated Amazon E-Commerce Service. Alexa Web Information service allows for retrieval of site information such as popularity, related sites, detailed usage/traffic stats, supported character-set/locales, site contact information, meta data, and a list of links in and out of the site. The service is currently free and allows 10,000 requests per subscription ID per day. Check out the SDK page for more information. Amazon E-Commerce Service 4.0 allows access to detailed product attributes, product images, customer reviews, and attribute search. The service is free and you may make no more than one request to the Amazon E-Commerce Service per second per IP address. Check out the Amazon E-Commerce Service SDK page for more information.