I've been doing a feasibility study of creating a podcast of one of the short stories from my ebook collection. I want to giveaway the podcast to use as a marketing tool for the launch of the collection.
I've been looking into using distribution to iTunes of the podcast as part of the marketing.
If you're interested in looking into using iTunes for distribution, Carsten Cumbrowski's The Ultimate Guide to Podcasting is an excellent starting point. This really is an ultimate guide. He covers the software you'll need, the professional quality requirements you'll need to meet, and links to other material you don't even know you need to read. He includes just about everything you'll need.