Sun’s JDO Resources Site
http://access1.sun.com/jdo/
HYWY’s
Website to download PE:J
http://www.hywy.com/
Gopalan Suresh Raj’s PE:J resources
https://pejava.tripod.com/
Gopalan Suresh Raj’s JDO resources
http://www.execpc.com/~gopalan/java/jdo/jdo.html