Question about mesh links

I’m not sure if thats the right term for it. How do I make it so that I have several copies of one mesh, but if I edit the original, they all reflect the change?

Did you look to see what forum you were in B4 posting this?

To answer your question: Dupli-Verts & Dupli-Groups (F7).

http://www.blender.org/documentation/htmlI/x9867.html