Writing Excuses is a podcast made by a few different fictional authors (Brandon Sanderson is one of them, my favorite author). These podcasts are only "15 minutes long because you're in a hurry, and we're not that smart" (their catchphrase). The subjects vary from explaining different genres, publishing tips, and how to write conflict. The podcast has been going on for a while now and there are hundreds of them. The information is really useful for writers and is told in an easy to learn way. The older podcasts are even downloadable so you could listen to them while walking or driving (although I like to take notes). I highly suggest taking a look at their work if you are interested in being a better writer.