http://grunge.cs.tu-berlin.de/~tolk/vmlanguages.html Maintained by Robert Tolksdorf, this web site is a central clearinghouse for a wide variety of other languages for the JVM. It covers a variety of topics: interpreters, preprocessors for Java-like languages into Java, other languages compiled into Java, and other languages compiled into bytecodes.
http://www.cygnus.com/~bothner/kawa.html (Per Bothner, Cygnus) Another implementation of a Scheme compiler for the JVM. The compiler takes a different approach to Scheme compilation.
http://www.appletmagic.com/ (Intermetrics) One of the first languages translated into the JVM (besides Java, of course) was Ada. This web site demonstrates an application for using Ada to generate applets.
http://www.cs.indiana.edu/scheme-repository/home.html The Internet Scheme Repository. Contains the official documents that define Scheme and many useful programs written in Scheme.