This is an excellent online resource, with lots of good diagrams:
Bicycling Street Smarts:
Riding Confidently, Legally and Safely
This is from Chapter 3, "Riding Through Intersections":
When going straight through, stay out of a right-turn-only lane. Make sure right-turning traffic passes you on your right. If there's a lane marked for right turns and through traffic, ride near its left side. You may sometimes have to merge into the second or third lane from the curb to avoid the right-turning traffic.