If you don't mind me asking, how exactly did you do these podcasts? Like, where did you film it, where did you upload it, equipment, etc? I'm actually kind of interested in making a podcast of my own someday.
All of ours were done over Skype since once of our hosts lived in Georgia. We had used MP3SkypeRecorder and he did all the editing work so I'm not entirely sure what went on there.
Nowadays though, it's pretty simple depending on what you're doing. If you're just doing a solo podcast, then all you'll need is a good microphone and Audacity. For a high quality microphone, I would recommend the Blue Yeti Studio, which is what I have. It's an incredible mic, the best I've have by a huge margin. If you can't afford to shell out $150+ for it, that's okay, because Blue has less expensive options that are still great, such as the standard Yeti, Snowball, and even the Snowflake. If the Snowflake ($60 US) is still out of your price range, you can find some cheaper ones by poking around online, but if you want the best quality, I recommend a Blue microphone of some sort.
As for recording podcasts over Skype, Pamela is a great program. It'll record your calls and is easy to set up.
As for where I've uploaded, they went to YouTube, but honestly, I think SoundCloud would be your best choice, as it won't mess with your quality at all, and it provides a much better format for those listening to music/podcasts than YouTube.
I'm not a professional by any means but I had a lot of fun doing podcasts and hope I can start doing them again sometime. If you have any other questions for me I'll do my best to help you out.
