I know of many to share actually.

#1. TuneIn Radio. Tons of Japanese radio stations with Apps for the Iphone and Android. (Iphone only has 1 version for $0.99 but Android has the same one, plus a free version which works exactly the same.) What’s better than being able to listen to countless hours no matter where you are.
http://www.tunein.com

#2.) KeyHoleTV. KeyHoleTV streams lots of TV stations with usually poor quality, but hey, once I got lucky and was able to watch the Japanese dubbed version of the American show “24″.
http://www.v2p.jp/video/english/

#3.) Simulcast Radio. This website has the streaming files so you can listen to clear streaming radio stations from Japan, also telling you the area the stations are based out of by clicking the little flashy blips on the map (SWEET!).
http://www.simulradio.jp/

#4) LiveStation. LiveStation offers a pretty good amount of international TV stations including Japan. (QVC in Japan anybody?) I will be honest though, I never figured out how to get the stations to work, and it could also be possible my internet is doodoo.
http://www.livestation.com/

Now my suggested radio stations from TuneIn and SimulRadio with more talking, less music.

Ban-Ban Radio
FM-Castle
Osumi FM Network
Reds Wave
Sea Wave
Yes FM
Smile FM
Radio Morioka

Sometimes you might be unlucky with Ban-Ban Radio. They do some strange things sometimes. For example, one of the female DJ’s likes to play karaoke sing along, also one time on the way to work, it forced me to listen to the Japanese version of YMCA.

Enjoy :)