A revised version of my conference paper for the “YouTube and the 2008 Election” Conference has now been accepted for publication in a special issue of the Journal of Information Technology and Politics. This paper offers a pair of case studies on the 2006 Virginia Senate race (Allen v Webb) and the 2008 MN-06 House race (Bachmann v Tinklenberg) to make the argument that so-called “Macaca Moments” have more to do with netroots political mobilization than with the new media environment provided by YouTube.
A pre-publication version of the piece is available on my “Conference Papers and Published Works” page. This will be substituted with a link to the actual article once it is published.
David Karpf 
Congratulations, Dave! Do you by chance know the issue number and date for when this article is likely to be published?
Thanks Michael! It looks like it will be coming out in June ’10, volume 7, issue 2 of JITP.