Some intresting Blogs and articles written about documentary modes of address, explaining each one . there characteristics and differences etc
http://collaborativedocumentary.wordpress.com/6-types-of-documentary/
A blog i found , the most intresting one mentioned was performance documentary.
http://www.slideshare.net/elwillcox/bill-nichols-6-types-of-documentary
a powerpoint presentation with a great explanatory article written below based on bill nichols explanations into his six modes of address. i found this useful when preparing for our pitching session.
Cheryl Rose 