Linguistics Podcast from @linguistchris

iTunes has a number of podcasts about a range of subjects. I'm sure you'll be able to find one at least for each of your A Levels. This one is about linguistics, which means it covers much of what we do in English Language, and a few topics of interest which we don't. 

Linguistics Podcast (@linguistchris) @linguistchris Language Courses

Check out Introduction to English Linguistics II

If you do the Apple thing, check out this collection on iTunes, from the marvellously German Prof. Bergs.  Don't worry if they're all speaking Deutsch at the start of some of these, Bergson switches to English and he's pretty lucid. See also the link to ELLO in the sidebar.

Introduction to English Linguistics II Prof. Dr. Alexander Bergs Linguistics