Open source Java projects: Java Caching System - JavaWorld: "Enterprise Java specialist Steve Haines joins the Open source Java projects series this month with an introduction to Java Caching System (JCS), a robust enterprise-level caching solution. Steve starts with a quick introduction to caching, discussing the criteria for determining if objects should be cached and whether your application would benefit from a cache. He then shows you how to configure JCS and use it to build a caching application."