I listen to a number of skeptical podcasts. In addition to Point of Inquiry and SGU, there is the oldest skeptical podcast Skepticality, which is mainly interviews.
Skeptoid is a short < 15 minute podcast on a single topic.
The Skeptic Zone is a fun podcast from Australia. In addition to interviews, they have a segment called the Think Tank where they discuss and joke about various topics.
Monster Talk covers topics like bigfoot, the yeti and the Loch Ness monster.
Skeptically Speaking is a Canadian radio show, which is also released as a podcast:
Skepticality and Monster Talk come out every couple of weeks, the others are weekly. There are several other podcasts I’ve come across, but I don’t have time to follow them all.
(I was going to post the URLs, but I don’t have enough posts.)