This interactive chart show features trance and other electronic dance music every week, but the catch is that the fans get vote on their favorites to create a "top 3". Check out http://corstenscountdown.com for more information!
Although this radio show/podcast may not have been around as long as some already mentioned, Cosmic Gate has done well showcasing trance from around the globe as well as their label Wake Your Mind Records. Check out http://cosmic-gate.de/ for more information.
Many years ago the trio of Above & Beyond had a radio show called Trance Around the World (TATW), well, it has morphed into the popular radio show/podcast Group Therapy. The show has evolved to mean a lot to fans of Above & Beyond and/or Anjunabeats/Anjunadeep labels.