One of the first things you need to decide before purchasing a microphone for podcasting is what type of mic you should get: USB or XLR. In most cases, USB microphones have comparable sound quality to their XLR counterparts. The difference is in the way they capture sound.
I don’t need to tell you that podcasting has blown up again and with heavy-hitting content like This American Life, Serial, and Mark Maron’s WTF, to name a few, it’s easy to see why. Content is better than ever. But with an influx of great content and more listeners also comes a lot of crap and poorly produced podcasts in a saturated market.