In addition to the Soundcheck podcast posted earlier, reviews for Terry Teachout's Duke: A Life of Duke Ellington are piling up thick and fast. Perhaps the most considered is Ted Gioia's notice for the Dallas News which may be read here.
There is another interesting piece for Brain Pickings by Maria Popova entitled Duke Ellington's artistry and artifice: How the jazz icon engineered his own artistry which is available here.
A review for USA Today by Bill Desowitz may be found here.
A brief interview may be accessed here.
And finally for now, the redoubtable Mar Myers of Jazz Wax fame has posted a two part interview with Terry Part One is here followed by Part Two.