Watch the Strumming Patterns online guitar lesson by TrueFire from Play Acoustic Guitar 4: Rhythm Approaches
In section 2, Vicki shares 10 strumming patterns that you can use for reggae, classic ballads, folk hip, swing pop, stop 'n go pop, udu hip, jazzy pop, acoustic rock, new world roll and other popular styles. Having command of a wide range and variety of strumming patterns will open up countless musical opportunities for you to take advantage of.
TIP! Being a good rhythm guitarist starts with having a good sense of timing and being able to play in the pocket. But once you have a good handle on that, then you need to expand your options - both rhythmically and harmonically.
A great way to do this is by listening to other players who are great rhythm guitarists. Hear how they apply different variations and make note of what their choices are.
It helps to break your rhythm practice into those two areas - work on rhythm variations and different feels and grooves. Then work on using other harmonic options, different chord inversions and voicings. If you systematically experiment with testing out other options you will naturally gravitate towards the ones that are YOUR style, and you can further develop those, and then you will become that hip rhythm player that other people listen to!