Beginning at 7am local time, Web of Science may have disruptions due to upgrading activities. Here is the note from Thomson Reuters, parent company of Web of Science:
“Maintenance Alert
Thomson Reuters will be upgrading ISI Web of Knowledge on Sunday, October 19, 2008, beginning at 8 AM EDT. There will be disruptions to ISI Web of Knowledge and EndNote Web throughout the day. We apologize for any inconvenience that this might cause.”