Watch the New World Roll online guitar lesson by TrueFire from Play Acoustic Guitar 4: Rhythm Approaches
New World Roll - Pattern 28 is a video guitar lesson presented by Vicki Genfan and is sourced from 30 Strumming Patterns You MUST Know.
This one uses the open tuning D-A-D-G-A-D. The chords are Bm9-Em9-Asus-Dadd4.
This is a very full, flowing strum and can be used in any kind of music from country ballads to rock, pop to singer-songwriter. I'm using the roll on every chord but you can use it more sparingly, as a way to bring a new dynamic to the progression.