Kevin just sent me an email about a blogger both of us have followed for some time - dalantech of the No Cropping Zone - a very talented macro photographer. (I love his deconstructions!)
In his latest post he has offered that he often will license his insect images for credit only, especially for a science or education professional. As he says it works for him to get the publicity and for the professional to get some wonderfully high quality images.
If you need good insect macro photography for your next pub or presentation give him a once over. Some excellent material in his galleries.
Now to get some CC licensed mollusc photos...f course I'd rather take them myself, but no time... (and few animals)