Wiley InterScience will no longer be available beginning Saturday, August 7, at 1am. It will be replaced by Wiley Online Library beginning Sunday, August 8, at 9pm. For details, see these Frequently Asked Questions.
The SpringerLink and LexisNexis sites are scheduled to upgrade their interface early Saturday morning, with no interruption in service.
For more information on these and other database changes, see this earlier post.