ScienceDirect Unavailable for Part of Saturday 3/3/07

ScienceDirect will be unavailable Saturday, March 3rd for approximately 9 hours starting at 3:30 AM.  This downtime is necessary to improve the performance of ScienceDirect and to ensure a high level of reliability in the coming years.  We apologize for any inconvenience that this will cause to ScienceDirect users.