The Kidlitosphere (blogs and podcasts about Children's Literature and Literacy) is filled with interviews of children's literature creators and children's literacy promoters. You can find many of these interviews indexed at the Kidlit Interview Wiki, and this list now includes interviews from The Book of Life.
The Kidlit Interview Wiki provides links to interviews with children's authors, illustrators, and literacy promoters. A separate but related wiki, Children's Book Reviews, provides links to blogs and podcasts that review literature for kids.
For general information about the "kidlitosphere," visit the website Kidlitosphere Central, where you'll find a wealth of resources, including links to many blogs and podcasts.