Scientific Libraries

NETLIB: A central resource for mathematical computing
http://www.netlib.org/

Java Resources for Science and Engineering
http://www.npac.syr.edu/projects/tutorials/JavaCSE/

Colt:  Open Source Libraries for High Performance Scientific and Technical Computing
http://tilde-hoschek.home.cern.ch/~hoschek/colt/index.htm

Java Numerics
http://math.nist.gov/javanumerics/

Java Classes for Operations Research
http://OpsResearch.com/OR-Objects/index.html

Java Numerical Toolkit
http://math.nist.gov/jnt/

Parallel Compiler Run-Time Consortium
http://www.npac.syr.edu/projects/pcrc/

Java Grande Forum
http://www.javagrande.org/

Titanium: A Dialect of Java for Large-Scale Scientific Computing
http://HTTP.CS.Berkeley.EDU/projects/titanium/

Java Access to Numerical Libraries
http://www.cs.utk.edu/f2j/hpjhtml/

JIGL: Java Image and Graphics Library
http://rivit.cs.byu.edu/jigl/

Image/J - Platform-independent Scientific Image Processing Package
http://rsb.info.nih.gov/ij/

Image Processing Package in Java
http://www.ctr.columbia.edu/~dzhong/JIM/JIM.html 

Educational Applets

Physics Education R&D at North Carolina State University at Raleigh
http://www.physics.ncsu.edu:8380/physics_ed/

Physlets at Davidson College
http://webphysics.davidson.edu/Applets/Applets.html

Physics 2000 at the University of Colorado at Boulder
http://www.Colorado.EDU/physics/2000/index.pl

Project Links at Rensselaer Polytechnic Institute
http://links.math.rpi.edu/index.html