Virtual lab of fossils and artifacts from East Africa: http://africanfossils.org/
Virtual exhibits from the Smithsonian: http://humanorigins.si.edu/
Browse 3-D digital models in Primates à Hominidae: https://www.morphosource.org/
Primate comparative anatomy: http://www.eskeletons.org/
Hominin fossil comparative anatomy: http://www.efossils.org/page/compant
Links to a variety of 3D visualizations of different organisms: http://morphomuseum.com/links
Source: http://www.eskeletons.org