What are some good resources for a layman to get a basic overview of modern philosophical theories, positions, and open questions in plain language? I'm reminded somewhat of Bryan Magee's videos, only looking for something a little more up to date.
A good description of most major philosophical positions, arguments, and so on, is The Philosopher's Toolkit: A Compendium of Philosophical Concepts and Methods by Baggini. It's a little dry, so if you're not already interested in philosophical concepts it's unlikely to sell you on the interesting aspects of philosophy. Also, it is written like a reference, not a conversational introduction. But the descriptions are clear and brief; I've not found a better source to get quickly up to speed on the basics.
Just to clarify: Are you looking for complex modern philosophical theories written for the layperson, or are you looking for introductory philosophy materials? If it's the latter, the following sites might be a start:
In some cases the standard wikipedia articles will probably be more appropriate than the simple versions (in terms of accuracy and thoroughness). Honestly though, I think a decent introductory philosophy book would go a long way if you're really interested in a broad, relatively neutral overview of many areas in philosophy.