I told them listening to English podcasts on an iPod, or mp3 player was probably the best way I knew they could improve their English listening skills very quickly.
A podcast is an audio file that you download from the Internet. After you download it, you can listen to it on your computer or on an MP3/portable music player (for example, an iPod or iRiver). You can subscribe to a podcast so that it is delivered to you automatically each day, just like a newspaper.
I hope I've sold you on the benefits of creating your own English podcast playlists. They definitely can help you.
Large List of ESL Podcasts