There are several podcasts related to World of Warcraft available in the iTunes Store for download to iPod Touch or iPhone, or Apple TV.  Most can also be downloaded to your computer, no iPod or iPhone necessary, from the producers' websites, or you can watch on the sites.  I'm listing 3 here.  Others are to be found in "Podcasts" in the iTunes Store.

ON Warcraft has 8 episodes (4-8min. each) of tips and techniques.  Available for Touch/Phone or Apple TV (different formats), and also available for viewing in your browser at  http://www.onnetworks.com/vide.....n-warcraft

Quest Log (16 episodes) offers mods, tips, etc.  iTunes store and  http://questlogpodcast.blogspot.com/

In The World: A World of Warcraft Podcast (18 episodes, each more than 1hr.), iTunes store and  http://intheworldpodcast.com/

Maybe those of you with an interest in WoW already know this, but it's news to me.