Ebola and other emerging viruses

[AlW1]

Does anyone know where I can find a reference that would provide a
classification of these viruses - a family tree of the viruses. I am not a
virologist, just interested in the subject. I find myself having
difficutly keeping track of the viruses and their relationship to each
other. Which viruses are related to each other (ie. Marburg and Ebola
viruses are filoviruses - but what about the other hemorrhagic viruses,
and what about the hantavirus, etc., etc.). This would give me a way to
follow the discussions and keep the information organized.

Al Wagener V.M.D.