Watch the Slash Chords online guitar lesson by TrueFire from Play Acoustic Guitar 1: Quick-Start for Beginners

The concept of slash chords is a great way to make basic chords sound more interesting! Instead of learning a bunch of new chords with strange new names, you're really just playing chords you are already familiar with but changing the bass note. This gives it a really nice sound and allows you to play some chords that are more full sounding.