Presentations pose some special information needs.  Here are some resources for those end-of-semester presentations:

Image Collections

http://www.freeimages.co.uk/

https://freerangestock.com/

http://www.public-domain-photos.com/

Sound Clip/Music Collections

http://publicdomain4u.com/

http://soundbible.com/

http://www.soundjay.com/

Citing Sources in Oral Presentations

Citing sources in presentations (Brock University)

Using citations and avoiding plagiarism in oral presentations (Hamilton College)