Swallowtail, Frog, and other photos are copyright by J. Clark, ManyMedia.com is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. Here’s a description of this license from Creative Commons:
This license lets others remix, tweak, and build upon your work even for commercial purposes, as long as they credit you and license their new creations under the identical terms. This license is often compared to “copyleft” free and open source software licenses. All new works based on yours will carry the same license, so any derivatives will also allow commercial use. This is the license used by Wikipedia, and is recommended for materials that would benefit from incorporating content from Wikipedia and similarly licensed projects.
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Meet Chu, from the future (a short story from 1998) by J. Clark, ManyMedia is licensed under a Creative Commons Attribution-Non Commercial-Share Alike 3.0 Unported License, and was based on works at ManyMedia.com.