The controversy surrounding General McChrystal – and especially Obama’s role in the matter – commanded attention on blogs and Twitter last week. Twitter users also shared news of a landmark copyright ruling portrayed as a victory for online freedom. And on YouTube, a clip of a dancing baby led to a vibrant conversation over authenticity.

Obama’s replacement of General McChrystal as the head of NATO forces in Afghanistan generated voluminous political analysis last week. Coverage of the war approached a level not seen since late last year. Meanwhile, the Gulf oil spill continued to attract headlines, as did Wall Street reform. 

The disaster in the Gulf of Mexico became a hot topic in blogs and on Twitter last week, with the discussion focused on a range of storylines. At the same time, two subjects that had generated little attention in recent weeks—the economy and the war in Afghanistan—also drew significant interest. On YouTube, a Congressman’s angry response to being filmed drew almost 2.5 million views.

The economy was the top story last week, but it faced stiff competition from U.S. medals in Vancouver, fighting in Afghanistan, a retiring senator in Indiana and an attack on the IRS in Texas. And then there was Tiger.

The President’s long-awaited decision on how to wage war in Afghanistan was the No. 1 story last week, surpassing coverage of the two big domestic issues—the economy and health care. But a scandal-scorched athlete and some White House party crashers found their way into the top stories as well.

The Project for Excellence in Journalism did not issue a News Index report this week, but the data is available.