My graphic novel (and occasional picture book) reviews appear regularly in Booklist and at Booklist Online. Below is a (growing) list of more in-depth features.
"Graphic Novels for Beginning Readers." Booklinks, April 2013.
"The Case for Graphic Novels in Education." American Libraries, August 2011.
"Using Graphic Novels in Book Clubs." Booklist, March 2011.
"Truth and Justice! Graphic Novels for the Social Studies Curriculum." Booklinks, October 2010.
"Eye of the Sturm: an Interview with Comic Visionary James Sturm." Booklist, March 2008.