Print on-demand publisher BookLocker.com has filed an antitrust lawsuit against Amazon.com due to the companies decision at the end of March to require print-on-demand books be printed inside Amazon's own fulfillment centers. A PDF of the complaint is available from BookLocker.com.

The complaint alleges Amazon.com is in violation of the Sherman Act by engaging in tying a violation of section 1 of the Sherman Act, 15 U.S.C. § 1.

Amazon forces POD publishers to use BookSurge for printing services when they might otherwise prefer to purchase such printing services elsewhere.

Amazon’s practice of tying printing services to sales in the Online Book Market unreasonably restrains trade and is unlawful per se under Section 1 of the Sherman Act.

BookLocker.com has setup a special Website to provide information and updates on the case.