Human Neuroanatomy Tutorial (Images include gross preparations,
cranial nerves, etc.):
http://medstat.med.utah.edu/WebPath/HISTHTML/NEURANAT/NEURANCA.html#1

Human Brain Atlases with Various Imaging Techniques:
http://www.med.harvard.edu/AANLIB/home.html
http://www.msu.edu/~brains/humanatlas/

Rat, Mouse, Monkey, Human Brain Atlases:
http://www.loni.ucla.edu/Atlases/

Mouse Brain Atlas:
http://www.hms.harvard.edu/research/brain/atlas.html

Sheep Brain Atlas:
http://www.msu.edu/user/brains/sheepatlas/

Sheep Brain Dissection Guide:
http://www.humboldt.edu/~sheep/default.html

Salamander Brain Atlas:
http://www.msu.edu/course/zol/402/atlas/

Dolphin Brain Atlas:
http://www.msu.edu/user/brains/turs/

Drosophila Brain Atlas:
http://flybrain.neurobio.arizona.edu/Flybrain/html/atlas/index.html

Comparative Neuroanatomy:
http://faculty.washington.edu/chudler/moreb.html
http://www.msu.edu/~brains/
http://www.brainmuseum.org/
http://neuroanatomy.bsd.uchicago.edu/
http://www9.biostr.washington.edu/da.html

Comparative Brain Quiz:
http://faculty.washington.edu/chudler/compare2.html

Neurohistology:
http://www.med.uiuc.edu/histo/atlas/showcat.asp?cat_to_show=L

Links to Additional  Neuroscience Resources:
http://faculty.washington.edu/chudler/ehceduc.html
http://www.neuroguide.com/

Neuroscience for Kids (This site is fun for kids of all ages.)
http://faculty.washington.edu/chudler/neurok.html