Languages/APIs: Java/J2EE, Coldfusion, PHP, DELPHI, PL/SQL
Templating and tag libraries : Freemarker Template Library, Struts tag library
MVC Frameworks: Struts 1.x, Struts 2, Fusebox
Bean Container : Spring IOC, PICO
UI Frameworks : Tiles, JQuery, DOJO, Prototype, DWR, JAWR
Web Services: Axis, Spring Remoting (JAX-WS, JAX-RS), Spring WS, Apache CXF
Dataaccess frameworks: Hibernate, Spring JDBC
Design/Tools: MS Visio, Oracle Designer, Middlegen