This Week in Tech (TWiT) is a weekly podcast hosted by Leo Laporte and an ever changing panel of guests. The show discusses the week’s tech news. Guests are often former TechTV personalities or technology journalists. The format is a round table discussion where Leo typically gives a summary of the news event and then the panel offers their comments on it.

Security Now is a weekly computer security podcast hosted by Steve Gibson of Gibson Research Corporation with Leo Laporte. The content typically alternates between a technical discussion of some aspect of internet security, a recent security threat, or questions from listeners. The content can get technical at times but the conversation between Steve and Leo always helps to make the topics much more understandable.

Tips From the Top Floor is a photography podcast. I started listening to it about a year and a half ago. At the time, I wasn’t sure just how you could describe photography tips and techniques through an audio podcast, but Chris Marquardt, the host, does an excellent job. There’s also an occasional video podcast thrown into this feed, but since I listen to most of my podcasts while commuting, I can’t comment on those.