Applets and Java Web Start applications are now referred to as rich internet applications (RIAs) - Java programs that take advantage of the Internet. A pointer to the RIA guide. The guide includes information on design, development, deployment and resources.
This Java plug-in guide describes features released prior to the Java SE 6 update 10 release. A pointer to the Java Plug-in developer guide. The guide includes a chapter on security and the signed applet support in Java Plug-in, which allows users to grant (signed) applets all permissions based on their authenticated signers, without having to configure and deploy any policy or keystore configuration files.