Some web applications I have worked on:http://www2.ed.gov/about/inits/ed/edfacts/index.htmlhttp://www.cdcnpin.orghttp://fedtraveler.com My code is concise, easy to read and maintain. The most junior developers will be able to read my code and quickly grasp the concepts. If it is not self documenting, comments within the code will explain everything. Business functions are broken down to their basic parts, and databases are normalized with relationships between tables clearly defined.