Watch the Essential Concepts online guitar lesson by TrueFire from Play Acoustic Guitar 8: Advanced Techniques
In this section, Massimo Varini takes you to school on a wide variety of harmonic and sonic concepts that you need to fully understand, and have a solid grip on, to advance your acoustic chops. Massimo also presents several tasty rhythm parts for verses, intros, outros, and choruses.
TIP! Whatever you sit down to practice on, remember, breaking it down into small chunks will help you play it better, and remember it better. Take a lick or rhythm or pattern and see if you can break it down. Maybe you can look at what your right hand is doing, then what your left hand is doing. Look at each little technique involved and work on those individually. Once you have all the little pieces sounding good - then glue it all back together and voila! You will find that the whole has been strengthened by working on each little part!