This Berkeley website is a terrific resource for teaching ideas, content, background information, all evolution related. You can find phylogeny exercises, natural history information, images and much more. You might need to wander around the site to become familiar with all of its offerings.
http://evolution.berkeley.edu/evolibrary/home.php
This is the Smithsonian website “What Does It Mean to Be Human,” an extremely comprehensive resource on human evolution for teachers and students.
http://humanorigins.si.edu/
From the pages of The New York Times science section, this article, entitled “Adventures in Very Recent Evolution,” informs readers about the ways humans have evolved in the recent past and will continue to evolve into the future.
http://www.nytimes.com/2010/07/20/science/20adapt.html?pagewanted=all&_r=0