You can use the Duke logo, actually... also:
Java Today: Portlet intro, Java SE 5.0 update 8, and using antlibs
Spotlight: Ask the Experts about JSF
Forums: SwingX refactors DataSet to DataBuffer project and inter-app communication with simple I/O
Weblogs: Conditional processing in Japex, HTML prototyping for Java apps, and intelligent != diligent