According to Derrick Oien, Myspace.com has quietly rolled out podcast and RSS support. I don't have a Myspace account, so I haven't been able to examine any particulars.

Depending on the actual level of integration, this could be big news. I read somewhere recently (I think it was in Rolling Stone) that Myspace.com is the fourth-most visited site on the web behind Yahoo!, eBay and MSN. The Rolling Stone article highlighted how bands are making heavy use of Myspace as a way to reach out to fans. If those bands find themselves jumping on the podcasting bandwagon, it could prove to be another watershed moment for both podcasting and the music industry. Stay tuned.