NBC's "viral" videos

Recognising the power of viral marketing, NBC's "Video" page features this blurb on a page that features embedded small clips from their shows. The clips are quite short in duration and are evidently seen by NBC as having "viral" potential. Embedded video's probably not the most traditional of viral marketing methods, though.

"Now, instead of searching the web for "borrowed" NBC highlights, you can go to the source! We've taken your viral favorites and gathered them into one convenient location. Watch. React. Tell a friend."

Here's a good one:
Natalie Portman raps on SNL