Here's waht you need to know for today in the business of podcasting: SiriusXM has posted their Q1 earnings report, Pierre Bouvard covers the 24/18/58% rule, travel advertising is taking flight, brands are looking to stretch beyond TV in sports advertising (and podcasting looks to be a good fit), and a new university has introduced a podcast course into their curriculum. 

Find links to every article mentioned and the full write-up here on Sounds Profitable.