From the NYT:

Katie Couric’s newsmaking interviews with the Republican vice presidential candidate, Sarah Palin, last week had only a slight impact on the ratings for her CBS newscast. But if the network could have added up all the other viewers the interviews (and its spoof) racked up, on places like CNN, YouTube and “Saturday Night Live,” Ms. Couric would surely have been more seen and talked about than in any week since she began her tenure as anchor.