WebSphere What's New
WebSphere for z/OS -- I am no longer a dummy but...
Security Architecture -- How Does WebSphere Play
Staged application development in a WebSphere ND Cluster
WebSphere Application Server 7 OSGi and JPA Modern Batch Feature Pack Beta
Hands on, Lots-O-Labs, If you are a WebSphere administrator or a mainframe programmer who still uses ISPF you had better read this list.
Introduction to using IBM Support Assistant for WebSphere Application Server for z/OS
WebSphere Process Manager and Business Process Manager V7 Configuration
WebSphere 101
WAS on z/OS and WLM Interactions