I found the Merriam-Webster's Word of the Day podcast to be an interesting podcast.
http://www.merriam-webster.com/word-of-the-day/
I believe it could a very useful tool in the classroom, by making it a beginning of the class activity in our Language Arts classes. Increasing our students' vocabularies will help them to become more knowledgeable learners and thus hopefully increase their abilities to read and understand text, by having them be exposed to unfamiliar words.
Another podcast that visited was the LD Podcast.
http://ldpodcast.com/
I chose this podcast because I am interested in Learning Disabilities and am hoping to get my Masters in Special Education with a focus on Learning Disabilities. I will use this podcast as a way to help me understand the needs of my student's who possess learning disabilities.
Podcasts are indeed a very a interesting and useful tool to help educators increase their knowledge on a variety of topics.
