Podcast List - A database of 200k+ podcasts to feature your business
WikiTribune - Evidence based journalism, from the founder of Wikipedia
Pod Hunt - The best new podcasts daily
Neighborhoods.nyc - Hyper-local alerts targeted by NYC neighborhood
Podda.io - Podda is a podcast discovery tool that you can use to discover podcasts by guest.
Data Dashboard by Wikimedia Foundation - Compiled data of the Worlds busiest public site