Even if the material comes up in a search for "free material", it is almost never "copyright free", and almost always only allowed to be used under certain conditions.
Please be sure to check the site's terms of use.
Also, when using materials for open content on JV-Campus, please use those that meet the conditions for “commercial use”.
Some images may only be used for personal use, and credit requirements may vary, so please be careful.
We also recommend that you keep a copy of the Terms of Use and the date you referenced them in case you have any problems later.