This week on the PCWorld Podcast, we take a look at Facebook's big outage and the odd Twitter hack that disrupted the social media world briefly. Then we dive into news from Nvidia's GPU Technology Conference to see how the coming wave of graphics upgrades will speed up everyday computing.

Editors Nate Ralph and Jason Cross have become fiendishly addicted to a little game called MineCraft, and tell us why we should all check it out this weekend.

Finally, Nate walks us through his recent foray into Ubuntu Linux. (Yes, he can still play MineCraft on it.)

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