http://bluesguitarunleashed.com/acoustic if you are interested in more acoustic blues lessons like this.
This is basically the start of an acoustic blues series that I did for my subscribers and customers. This basic "blues in E" pattern is the foundation for a lot of blues, so it's a good place to start.
If you are a total beginner, this might be too hard and I would suggest you at least get a few basic chords under your belt before starting on it.
I hope you dig it and have some fun with it.