Privacy and copyright are important considerations in developing an ePortfolio or implementing an ePortfolio program. The following resources put together by EPAC offer some insight into issues around copyright and ownership.
EPAC Copyright Resources
http://epac.pbworks.com/w/page/35679449/Copyright-Free-Resources
It would be worth adding to their list of Resources for finding copyright free images and audio
1. Flikr Creative Commons
http://www.flickr.com/creativecommons/
2. Internet Archive
http://www.archive.org/index.php