Duo Attacks Valve
With the increase in electronic "terrorism" on the rise, Valve's all encompassing online distribution service Steam, is the latest to be targeted. The damage caused by the DDoS attacks rendered Steams Marketplace and Community functions almost useless, and these problems persist during the final hours of the Holiday Sale.
It appears two Tweeters have taken responsibility for the attacks, posting the above. There are no updates on Steam's Twitter page, so these issues could be set to continue for a little while longer yet.