Answered By: Franny Gaede Last Updated: Jun 18, 2014 Views: 28
We recommend that you limit images to those that you are free to "modify, adapt, or build upon." For example, Flickr allows you to search for Creative Commons Liscenced content. Here is how to change your settings on flickr so you can only see this content:
If you do use Creative Commons images be sure to read the license requirements and always give proper attribution.
More information on how to cite can be located here.