Dark Sun enthusiasts discussing the setting in what I hope will prove to be a long-running series of podcast episodes.
Jim Davis from Web DM has started a new streamed D&D campaign called Land Between Two Rives that is heavily Dark Sun influenced--a great example of taking the setting's themes in new directions. Plus, I love how oddball and different the cast of characters are from the "only Tolkien races" or "humans only" campaigns out there; this one's got a goblin cleric, a tiefling bard, a lizardfolk ranger, a bugbear druid, and a human (created by magic because humans are extinct) barbarian.
The Web DM show also did a podcast episode on the Dark Sun setting and what they love about it.