Every day, I am becoming a bigger advocate for copyleft licensing options for content. Copyleft licenses lets the creator maintain ownership (and copyright), while allowing others to share the content under terms specified by the creator.
If you are looking for images to use in presentations, copyleft content offers you a legal option for free content. If you are creating content, consider sharing it with others under a copyleft agreement.
My newest podcast features a sampling of great copyleft visual resources, like clip art, photos, and video. (If you missed it, the last show was on audio resources.) Both of these shows were really fun to produce (and a lot of work to edit, but that’s part of the fun).
Here is a list of copyleft sources to look at:
At some point in the future, I’ll do another podcast on copyleft-licensed educational resources. Hope you enjoy!