5 March 2008: Our original sbml.org server hardware finally exceeded its disk MTBF lifespan and stopped working altogether. This occurred slightly before we were ready with the new site. We have put the new server and website online (you're reading it now), but the content of some areas (such as this one) are not yet ready. We apologize for the inconvenience and are working on restoring the content as quickly as we can. Please check back again soon!