ESLPodcast
Covers a great variety of topics. Every programme (three times a week) has a short monologue or dialogue. Explanations of words and phrases are given in English at the end. Transcipts of the talk is attached to each podcast. You have to pay a small amount if you would like to have more material.

English Teacher John Snow
Covers a wide variety of topics. Also holds grammar lessons.

English Idioms and Slang
Short talks about certain idioms and slang phrases.

EnglishPod Learn Advanced English
Transcripts of the programmes are attached to the podcast.

goFluent's English in the Real World
This weekly podcast provides a lead in and vocabulary in the first part and goes into real life in the second in the following fields: travel, business, academic, general English. They also offer additional services.

Listen to English - learn English!
Nice texts, not too difficult. For Beginners. Provides explanations on the homepage.

FTD-business English
Provides Financial Times background information and analysis in English. Vocabulary and phrases are explained in German.

Learn English at Better at English
You will find language lessons with pronunciation, explanations and its usage usually in a two-minute-podcast.