Latin American Open Archives Portal (LAOAP) This link opens in a new windowLatin American Open Archives Portal (LAOAP) provides access to social sciences grey literature produced in Latin America. It includes content is published by research institutes, non-governmental organizations, and peripheral agencies that are not controlled by commercial publishers. The portal provides access to: working documents, pre-prints, research papers, statistical documents, and other difficult-to-access materials from the Deep Web.