Facebook
As part of its year-in-review trends analysis, Facebook created a list of the 10 fastest-growing Facebook Pages for news outlets. It includes a couple of newspapers and online sources, but TV and radio broadcasters dominate the list with six out of 10 spots, including the top three -- CNN, Fox News and NPR. The rest are:
4. The Onion
5. The New York Times
6. Al Jazeera
7. Yahoo News
8. Times of India
9. BBC World News
10. PBS

Earlier: Facebook's 40 most-shared articles of 2011 (Facebook.com)