Poddl is a side-project that lets you organize podcast niches (called subpoddl) where you can listen to your favorite podcasts without an app,
directly in your browser, tablet or phone.
Is is very easy to access the MP3 files by clicking on the thumbnail.
The original idea was to be a reddit for podcasts, and it complements a subreddit well if you are the moderator of a subreddit.
New: Each sub now has a m3u playlist corresponding to the subreddit of the same name. You can play this playlist with SMPlayer (better for videos) or VLC Media Player (better for still images).