These are a couple of pretty cool websites.

eLucy lets you compare the skeleton of an Australopithecus Afarensis (Lucy) against a modern human or chimpanzee. Lucy is a well-known link between the human lineage and that of other apes. Here's eLucy: http://elucy.org/compant/json.html

eSkeleton is a site which enables you "to view the bones of both human and non-human primates and to gather information about them from our osteology database." You can have a side-by-side view of the bones for comparison. Here's the link to eSkeleton: http://www.eskeletons.org/