Due to compatibility issues, the 3-D virtual lab is no longer available. But,  here are links 
          to other virtual labs on the internet.
        Link to Virtual R.A.P.P. lab data checker
General and Organic Chemistry Virtual Labs & Games
                  http://www.chemgames.com
        Gas Laws:
            http://intro.chem.okstate.edu/1314F00/Laboratory/GLP.htm
        Titrations:
          http://lrs.ed.uiuc.edu/students/mihyewon/chemlab_experiment.html
          http://www.rosetta.tased.edu.au/links/Titrate/Titre.htm
          http://www.cc.edu/~jtowell/Titration/titrate.html
        Photoelectric 
          Effect:
          http://www.usd.edu/phys/courses/phys431/notes/notes5g/photoelectric.html
        Modern Atomic 
          Theory:
          http://www.colorado.edu/physics/2000/index.pl?Type=TOC
        Organic:
          http://antoine.frostburg.edu/cgi-bin/senese/tutorials/isomer/index.cgi
          http://atom.chem.wwu.edu/dept/vmolckit/molecule.html
          
        Online lab at 
          Carnegie Mellon:
          http://ir.chem.cmu.edu/irproject/
        Online lab at 
          OldManHonda.com
          http://oldmanhonda.com/Chemistry/WebLabs/Labs.html
        Online lab at 
          Hazelwood, MO:
          http://www.hazelwood.k12.mo.us/~grichert/sciweb/chemvl.htm