Can anyone recommend any online learning resources for 4 string fretted bass please? I'm mainly interested in rock and blues.

I've been playing guitar for a bit and bought a bass on a bit of a whim admitedly. Having spent the weekend dicking about with some scales and learning some tabs I'm really glad I did as it's bloody good fun

I did read a couple of things online about right hand 'walking' finger plucking but must admit to giving it a miss after a brief try and pressing on with a pick. Partly because it meant I could move on more quickly but also because I simply liked the sound better.

Any advice or pointers to online lessons or resources would be gratefully received.