Activism through virial video

How do you get the word out about your cause if you have a limited advertising budget and you really don't have a media budget? The YouTube blog has put together a play list of some of the best "activist" viral videos on YouTube.

Here are some of my favorites:

Picking fruit in LA. Not the most exciting video but a cool concept. Who knew so much edible fruit was for free there?

Um, for your guys out there, check yourself:

If you like that, there is more of it here.

What's your favorite?

- Paul Herring