REL West staff have searched selected databases for relevant resources and developed a references list of resources that are relevant to the request. This memo includes: 1) Research reports and policy-oriented articles about factors associated with, as well as interventions for closing the achievement gap, and 2) Relevant organizations that focus on the issue of the achievement gap in K–12 settings. Citations include a link to a free online version when available. Citations are accompanied by an abstract, excerpt, or summary written by the author or publisher of the article. We have not done an evaluation of these resources or organizations, but rather provide them for your information only.