Libsyn’s AdvertiseCast Marketplace Unveils March 2022 Podcast Advertising Rates

PITTSBURGH–(BUSINESS WIRE)–Today, Liberated Syndication Inc. (“Libsyn”), the leading ‘Podcasting As A Service’ platform, announces March 2022 Podcast Advertising Rates, including highest CPM categories. Additionally, Libsyn’s AdvertiseCast, the industry’s premier podcast…