As you might know, I'm leading the charge at EnglishCentral and trying to make it into a great site for both teachers and learners.
Part of that job is working with their amazingly talented scientists and linguists. During a recent discussion they raised the point that they really need more native speaking recordings and data in order to do more powerful contrastive analysis of speech. Not many native speakers record the videos on EnglishCentral (and why should they?) but the data gleans from this is really valued and can be applied to a variety of algorythms that allow EnglishCentral to evaluate the speech of students. Especially with a new prosodic model in the offing, more native speaker speech data is really needed.
So this is where you come in!
I've created a page and any native speaking teacher who records all 10 of the videos will get some great books in return. It won't take a lot of your time and you'll also be helping students immensely.
Check out the page. All you need is a microphone and your voice. That's it. When finished, follow the instructions and your books will be send, pronto.
Any questions? The ball is in your court. Let's help some students!