I received an e-mail from libsyn (the company that hosts our podcasts) saying the following:
On thursday, 8/23 at approx 2:30pm EST there as a misconfiguration of DNS records sent out to the registrar which holds libsyn.com. This mistake quickly propagated around the internet in a matter of minutes, and despite our rapid response to correct the problem, there was a window where name servers around the globe stored and is currently saving the incorrect information. Initially we felt we had caught the error in time and that the effects would be minimal. We posted to the normal channels- support.libsyn.com about the issue. Several hours later, as we started to see reports of the outage (as users couldn't email us, cause the domain name was not resolving) we jumped back into the DNS issue and got on the phone w/ our registrar to see what they could do. Our registrar could not offer any solution to the problem other then waiting for servers around the world to correct themselves. They estimated it would take 24 hours or less. We are now approaching 48 hours and a portion of our users, and our users audience are still unable to resolve any .libsyn.com domains.
Now, I haven't had any troubles accessing our shows, but that doesn't mean that others of you are not. Please let me know by sending me an e-mail if you cannot download our show and I will provide an alternative link. I've been happy with libsyn up to now, so hopefully this doesn't happen again. I wish they would have provided more information as to how this situation began, though.
Anyway, keep on keeping on. Heather and I have already recorded a show today, and I'll be posting it up later tonight.