There's a good but too-short interview with Aaron Huey by James Estrin over at the Lens blog.
Here's Aaron's website.
For those interested in his subject, I can recommend a book I read a few years ago, Joe Starita's The Dull Knifes of Pine Ridge: A Lakota Odyssey. Which leads in turn to a recommendation for Ian Frazier's fascinating and entertaining On the Rez and from there to Frazier's best book, the lyrical, searching Great Plains.
And in case you want to help, here's a page where you can make a donation to the Red Cloud Indian School on the Pine Ridge.
(Thanks to Jayson Merryfield)