Justin Taylor had posted this at the beginning of the month, & I forgot to include it in my previous audio update.
Only two days left.
Life of David Brainerd - Free Audio download from ChristianAudio.com.
David Brainerd was a missionary to the Indians in America, and was someone who inspired the likes of Jonathan Edwards.
You'll have to sign up at the website, and it's about 9 parts, but ChristianAudio gives away a new freebie each month, so it would be worth the hassle.