Class projects

We have three ongoing class projects which most of you probably
already know about: Social and Cultural Foundations of American
Education, The Computer Revolution, and Ethnomedicine. I have posted
notes on the individual contributor's pages repeatedly particularly
about image use, but I get nothing even such as a reply. How can we
get in contact with these contributors? Or, how can we get in contact
with their group leader, professor, or whomever is in charge? They
need to know about copyrights relating to images. I ended up removing
all the untagged images I found in Ethnomedicine, left (hopefully)
kind notes on the uploaders pages referring them to Commons (where I
found related free images in all but one case), and have gotten no
reply. I'm flustered right now and cannot really think straight. Any
ideas about where to go from here?

-Iamunknown