Sony Announce The PSN Will Be Offline For Maintenance From 4PM Thursday 17th Until 2AM Friday 18th

Sony have announced they are taking the PSN offline whilst they conduct scheduled maintenance. the PSN will be down from:

UK - 4PM Thursday 17th Until 2AM Friday 18th
USA - 8AM Thursday 17th November to 10PM that same Thursday.

There will be no access to the PSN Store on PSP or PS3, No Access to PSN Account Management or registration. You will not be able to sign into some Sony websites using your PSN Account. Sony do say some users may be able to play games online.

Source: EU Playstation And USA Playstation Blog