National Gallery of Art: Public Domain Images

NGA Images is a repository of digital images of the collections of the National Gallery of Art. On this website you can search, browse, share, and download images. A standards-based reproduction guide and a help section provide advice for both novices and experts. More than 45,000 open access digital images up to 4000 pixels each are available free of charge for download and use (mostly public domain). NGA Images is designed to facilitate learning, enrichment, enjoyment, and exploration.

Skills Common Open Educational Repository

The US Department of Labor’s Trade Adjustment Assistance Community College and Career Training (TAACCCT) program has created a free and open online library called SkillsCommons containing free and open learning materials and program support materials for job-driven workforce development. The Open Educational Resources (OER) are produced by community colleges across the nation and can be found, reused, revised, retained, redistributed and remixed by individuals, institutions, and industry.

Temoa OER Portal

Temoa is a knowledge hub that curates a public and multilingual catalog of Open Educational Resources (OER) which aims to support the education community to find those resources and materials that meet their needs for teaching and learning through a specialized and collaborative search system and social tools.

  • It contains selected educational resources, described and evaluated by an academic community.
  • Resources categorized by area of knowledge, educational level and language, among others.
  • Provides a friendly search engine through intuitive filters.
  • Allows the creation of communities around educational resources.


Jorum is a Jisc funded Service in Development in UK Further and Higher Education, to collect and share Open Educational Resources (OER), allowing their reuse and repurposing. Our free online repository service forms a key part of the Jisc Information Environment, and is part of the wider landscape of repositories being developed institutionally, locally, regionally or across subject areas. It is the first point of call for 1000’s of resources, all shared by those who teach or have been inspired in the FE and HE community.

The Orange Grove – Florida’s OER repository

The Orange Grove repository, is Florida’s digital repository for instructional resources. The repository provides an environment for educators to search for, use, remix, share, and contribute educational resources. The repository can also be integrated with your Learning Management Systems (e.g., Desire2Learn).


Curriki is an online, free, open education service. Curriki is structured as a nonprofit organization to provide open educational resources primarily in support of K-12 education. Curricula and instructional materials are available at the Curriki website to teachers, professional educators, students, lifelong learners, and parents. The majority of the resources on the Curriki site fall under a Creative Commons license. Educational materials are provided by the Curriki community and are peer-reviewed for quality and adherence to standards.