The web is still short on good Ry Cooder resources, but the following couple of links should help you get a better understanding of Cooder's style:
How to Play Like Ry Cooder
watch Ry Cooder play his brand of acoustic slide guitar. Use the site tools to zoom in on Cooder's hands.
How to Sound Like Ry Cooder
offers insight into Cooder's guitars, amps and effects.
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