We regret to announce that the AlgoViz Project site has now officially closed. We have been running the site for a number of years after the project funding ran out, but that meant that we were unable to do maintainence. Eventually we reached the point where our version of Drupal was too obsolete to keep running due to the security risk.
We learned a lot from our experiences with AlgoViz, and this knowledge lead directly to the OpenDSA project. If you are looking for Algorithm Visualizations, we highly recommend that you visit us at opendsa.org.