I love to jamm to the videos and backing tracks that are on the Internet right now. The more we jamm the better we get at it. I especially like the ones that have the chords shown.
http://www.youtube.com/watch?v=R4x0u...eature=related
christianharger said the groove is more important than the notes being played, I'm beginning to see that. My mind tells me to play R-3-5-3, however, the groove - if it is 8ths or 16ths tells me to go all roots. I understand there is a middle road there somewhere. Yes to following the groove.
Find some backing tracks or play-a-longs.