http://care.eng.uci.edu/index.htm Professor Atluri CARE web site at UCI.
http://ocw.mit.edu/NR/rdonlyres/Aeronautics-and-Astronautics/16-20Structural-MechanicsFall2002/088DEC8D-4ACB-4E3E-9911-F3BB5EB6AF89/0/unit10.pdf This PDF file contains solution to TORSION problem in axial beam generating POISSON PDE.
http://opensees.berkeley.edu/ web site for OPENSEES FEM program.
http://opensees.berkeley.edu/OpenSees/manuals/usermanual/index.html user manual for opensees from UC Berkeley web site.
http://www.bem.uni-stuttgart.de/home.htm good notes on BEM method.
http://ocw.mit.edu/OcwWeb/Aeronautics-and-Astronautics/16-901Spring-2005/CourseHome/index.htm MIT open course for computational methods.
http://ohio.ikp.liu.se/fe/appl.html List of FEM books.
http://www.colorado.edu/engineering/CAS/courses.d/IFEM.d/Home.html on-line course material on FEM.
http://www.ann.jussieu.fr/free.htm links to free numerical software.