Proterozoic
Links
Ediacaran Fossils of Canada
http://geol.queensu.ca/museum/exhibits/ediac/ediac.html
An introduction (with a map and photos) to the Ediacaran fossils of Canada.
The Proterozoic Era
http://www.ucmp.berkeley.edu/precambrian/proterozoic.html
An overview of the era from the UC Berkeley Museum of Paleontology.