UPDATE July 11 8:45am ET: Games are accessible but very laggy. Smed finally apologized on Twitter last night: "..sorry to say more DDOS. I apologize for the issues we are having. I have to own pissing them off and I'm sorry. Just sorry they are taking it out on you, our players."
UPDATE July 10 5:45pm ET: Nothing official has been said in a few hours, but we're seeing occasional (and rare) reports of players being able to get into their game of choice. However, those managing to get into the games are experiencing heavy lag. Hope everyone has good plans for spending their Friday evening elsewhere!
UPDATE July 10 2:15pm ET: Not much has changed. From Daybreak on Twitter: "We are continuing to resolve issues from a Distributed Denial of Service event. We will provide updates as available."
UPDATE July 10 11:30am ET: Looks like Daybreak spoke too soon and the outages are happening again. "We are experiencing issues again which may result in lag, disconnects, or inability to access games, forums, or websites. The team is aware." Since official forums may be inaccessible, keep up-to-date with Daybreak's Twitter or Facebook pages.
Yesterday evening, Daybreak Games experienced DDoS attacks that caused players to be unable to login to any of the games, and those who managed to stay in-game to experience a lot of lag. Around 9:30am ET today the EverQuest II twitter account stated that all games appear to be back up and running.
If you are looking for further details on what occurred yesterday: