The eBay system will be undergoing general maintenance from approximately 23:00 PT (11pm) on Thursday, February 10th to 01:00 PT (1am) on Friday, February 11th. During this maintenance period, certain eBay site features may be intermittently unavailable or slow.

Original Annnoucement on eBay.com: 
http://www2.ebay.com/aw/core/201102.shtml#2011-02-09114955