This post is for marketing communications students and anyone looking to use free and legal images online.
With Google’s advanced image search you can filter by licence to find images tagged as free to share, use and modify. Flickr will also let you search for images where Commercial use and mods are allowed.
The creative commons search tool will help you find images and other resources from a number of search services. Be sure to confirm the resource has a Creative Commons licence.
Of course you can always take your photo, or you can stylize text with a tool like Notegraphy
If you are looking for icons, one of the best sites I have found is the Noun Project.
Remember even though an image may be free for use and modification many licences require attribution.
I am sure there are many other sources out there, what have you found?