The Los Angeles Times has a great piece today about the explostion of online video in politics.  The articles looks both at how both campaigns and activists groups are using viral video to try to impact the 2008 Presidential election. 

The whole piece is worth reading, but I found this tidbit about the McCain campaign particularly interesting:

McCain is planning his own Web version of reality TV. He has hired a videographer to record behind-the-scenes campaign moments of the senator in relaxed settings.

"What the campaign can do in a Web video is show a more personal side of the candidate," said Spencer Whelan, who works on McCain's online communications team.

I had not heard of that before.  You can see more discussion of the article over on Memeorandum.