A community article is available which discusses how to quickly build an Adobe Experience Manager 6.3 website for a toy store.
This site is built using HTL, the preferred and recommended server-side template system for HTML.
This article is a quick overview of some of the core concepts behind web site development on AEM. For a comprehensive introduction to all of the recommended tools and technologies for developing on AEM, please see the Getting Started Developing AEM Sites - WKND Tutorial.
Once you have created the basic toy store website, you can build on it using these articles:
For an introduction to building a simple website based on JSP and the classic UI of AEM, see the article Create a Fully-Featured Website (JSP).