Even though podcasts are audio files, there are a number of steps you can take to optimize them so that they're more easily found, both in general-purpose search engines and in the increasing crop of specialized podcast search engines. For tips on optimizing podcasts, see today's SearchDay article, Search Engine Optimization for Podcasts.
Optimising Digital Marketing Campaigns with Search, Social and Analytics
At SES London (9-11 Feb) you'll get an overview of the latest tools, tips, and tactics in Paid, Owned, Earned, Integrated Media and Business Intelligence to streamline your marketing campaigns in 2015. Register by 31 October to take advantage of Early Bird Rates.