Digitising line art and removing col erase blue

[ecofugal]

http://www.tonycliff.com/tutorials/

This is a great tutorial on preparing your line work in photoshop and adding colour. His method uses adjustment layers and masks for painting sections and it gives you great flexibility.
There also an Action you can download.

[acosby]

This looks very useful. I've been wanting to learn how to do this.

[Mr.Hades]

Thanks for the post. Found out a way of colourizing my black lines.