Watch the The I-IV-V Dominant Chords online guitar lesson by Ravi from Guitar Lab: 30 Rock & Pop Progressions

Often the I-IV-V progression is played using all dominant chords, especially when playing the blues. Try taking the progressions that you played in the previous segment, but use the dominant 7 version of each chord.

Examples: I Saw Her Standing There, Mary Had a Little Lamb (Blues), I Feel Good, Pride and Joy