University presses often have access to the best ideas and research produced by the scholarly community. Their combined catalogs can be browsed by subject or searched by keyword at this site. The Children's Book Council - Non profit trade association of publishers and packagers of trade books for children and young adults. Literary Market Place - Resource Directory for the domestic and international book publishing industry. You must register to use.
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Publisher's Weekly - The online version of the international news magazine of the publishing industry. It's Authors on the Highway has a schedule of author events and signings searchable by author, title, city or publisher. Alibris - Alibris allows you to shop from the inventories of thousands of used booksellers. Amazon - Amazon features reviews from Booklist and Kirkus. Bibliofind - Used and out of print book service with 20 million listings.