According to a post on slashdot:

“Apparently it with the release of all of Monty Python’s material on YouTube, their sales have blown through the roof on Amazon.com. It is too bad there isn’t any proper news article about this, but I think it bodes well for those who champion free content. More importantly, it forces the MPAA’s feet into their mouths.”

In the famous spam video, vikings will say spam so loud you can’t hear the conversation anymore, hence spam mail.

[youtube http://www.youtube.com/watch?v=anwy2MPT5RE]

Here is a link to the youtube Monty Python channel.