Harold thank you for continuing to address issues of copyright attribution.

I struggle to understand what is meant by non-commercial. I also struggle by what is meant by sharealike (even though I've read the CC statement many times). For example, many university or educational sites have a blanket 'All Rights Reserved' copyright statements on the bottom of their web sites and blogs. According to your copyright license, I do not think I can post an image/portion of a blog post with your (CCNASA) license to a blog on one of these sites because of the conflict with the 'Sharealike' and 'All Rights Reserved'. Is this your understanding as well?

Another question I have is about the non-commercial aspect. If a university uses one of your resources/images in a course for a fee, I would assume that some reimbursement would be needed to include those materials, or would this still be considered non-commercial use because it's for educational purposes?

I find myself erring on the side of caution, and splitting hairs, so any insight or wisdom you can pass on about these examples or related scenarios would be much appreciated!