1. Design
   1. HTML
   2. CSS
   3. Javascript
   4. jQuery
   5. Photoshop
   6. Flash
   7. Action Script
2. Programming
   1. PHP
   2. MySQL
   3. Codeigniter
   4. Ajax
   5. XML
      1. XML
      2. DTD
      3. XML DOM
      4. XSLT
      5. XPath
      6. XQuery
      7. XLink
      8. XPointer
      9. Schema
      10. XSL-FO
      11. SVG
   6. Web Services
   7. json
   8. DHTML
   9. HTML DOM