Wikipedia is down (again)

Online cyclopedia site is down again. If you had surfed to Wikipedia.org and other properties of Wikimedia, in Sunday (4/7/2010), you will find the message that the site is in maintenance server due to technique problems.

This bad occurrence happened just several hours after iTunes and YouTube are reported go through hacker attack. The unique is the entire occurrences happened in 4 July, when USA independent day is held.
It is not the first time that Wikipedia down. In March ago, Wikipedia went through the similar occurrence due to data center in Europe got too high heating so that it forced Wikimedia to switch off for a while and use data center in Florida. What the poor that transition process bring on DNS trouble that makes all Wikimedia websites cannot be accessed, including Wikipedia.
Until now, Wikimedia as the center service of Wikipedia do not give the explanation yet concern with reason of down systems in 4 July 2010. Wikimedia Twitter said "Thanks to be patient. We had found the trouble, electrical burnout in our data center in Florida.