If you're restricting yourself to audio only, you're missing out on a bunch of interesting videotaped lectures that you can listen too without missing out on mu

If you're restricting yourself to audio only, you're missing out on a bunch of interesting videotaped lectures that you can listen too without missing out on much. Check out the entire @Google series on Youtube or a bunch of interesting documentaries or TED talks. I've written about how to run video in the background on an iPhone: http://blog.bumblebeelabs.com/running-videos-in-the-background-on-an-iphone http://blog.bumblebeelabs.com/running-videos-in-the-backgrou...