PUBLIC MARKS with tags a9 & amazon

亚马逊推出的搜索门户，搜索结果和界面定制、地图搜索都很都特色，很值得学习.

Gather information about Web sites including traffic data, contact info, related links and more. Access an XML-based search index based on Alexa’s Web crawl and incorporate search results into your site or service. Build a Web directory into your site or service using an Alexa enhanced DMOZ-based browse service. Use the Alexa WebMap to gather links-in and links-out information about all pages on the Web and invent wholly new search engine algorithms.