Java Security Hotlist - Huge hotlist with commentary and searchable index of Java security resources, from the authors of the book "Securing Java". By Gary McGraw and Edward Felten.
Java Security - News, software, documentation, specifications, FAQs about Java security, by Sun.
Java Security: Frequently Asked Questions - FAQ on Java security with answers from the Princeton Secure Internet Programming team. By SIP, Princeton.
Frequently Asked Questions - Applet Security - FAQ on Java security issues in the applet runtime environments, by Sun.
Java Filter - An utility that lets you take control over which applets you want on your machine and which you dont. By SIP, Princeton.
Chronology of Security Related Bugs - A listing of Java security bugs in reverse-chronological order, by Sun.