The text of this guide RU: Finding and Using Free-Use Online Content © National University of Singapore Libraries is licensed under CC BY-NC 4.0 
. Attribute and link back to this LibGuide if you are going to re-use the content.
The aim of this guide is to provide copyright awareness and education in the following areas:
It does not constitute legal advice. For legal advice, please contact your legal counsel or the Office of Legal Affairs through your department.
Find creative commons licensed:
Step 1: Type in your keywords e.g. Find Pages With > "Toxicology"
Step 2: Narrow your results by Usage Rights > "Free to Use..." to find Creative Commons licensed materials
Screenshot from Google Advanced Search permissible under Google Search Guidelines
Step 3: Double-check the license! Just because Google has indexed content as free to use, doesn't mean the entire is license. Always verify that the specific image, video or text you wish to re-use is licensed under an open license.
Example
Article license CC-BY found using above Toxicology search https://www.mdpi.com/2072-6651/11/12/714. License below:
Bouaïcha, N., Miles, C., Beach, D., Labidi, Z., Djabri, A., Benayache, N., & Nguyen-Quang, T. (2019). Structural Diversity, Characterization and Toxicology of Microcystins. Toxins, 11(12), 714. MDPI AG. Retrieved from http://dx.doi.org/10.3390/toxins11120714 is an open access article distributed under the Creative Commons Attribution License
Hays, Ron D., et al. “Commentary: Copyright Restrictions Versus Open Access to Survey Instruments.” Medical Care, vol. 56, no. 2, Feb. 2018, p. 107. journals.lww.com, https://doi.org/10.1097/MLR.0000000000000857.