Scott Kelby on working a subject:
http://m.youtube.com/watch?feature=related&v=FpHMuK7Htic
See in particular these parts:
10:25-17:28
22:13-28:30
~33:00-37:50
On photo stories
http://www.deannefitzmaurice.com
The Iraqi boy’s story
A boy and his robot
A Coney Island story