I personally don't think a creative commons license is needed for our blogs. The pictures and other things on our blogs are okay to change because I don't think it is that big of a deal. If people can think of something creative to do with the picture, they should be aloud to create and express it. I also have people from both the blogging challenge and other people I don't know around the world looking at my blog, so I still don't think it's a big deal if someone I don't know wants to use my pictures and other photos.
7 years ago