Because of this interruption, some of SOE's MMOs and websites have gone offline, as SOE's servers are located in San Diego. The company sent a brief note over Twitter and Facebook saying that players might not want to hold their breath at regaining these services tonight: "The San Diego power outage could persist throughout the night affecting login servers, forums, and websites. We appreciate everyone's patience as the City attempts to restore power."
According to authorities, power is expected to be restored by Friday.
[Update: Some of SOE's services, such as EverQuest II, Pirates of the Burning Sea, and Clone Wars Adventures, appear to be back up and running.]
Update #2: SOE tweeted the following on Friday morning: "We appreciate everyone's patience during the recent power outage. Power has been restored and all services should be back online."]