Java Caching

http://ehcache.sourceforge.net/documentation/hibernate.html
http://www.devx.com/dbzone/Article/29685
http://coherence.oracle.com/display/COH31UG/Coherence+3.1+Home
http://acupof.blogspot.com/2008/01/background-hibernate-comes-with-three.html
Hibernate Tuning