Here it is, short and sweet: I have never had a great grasp on what exactly constitutes the Virgo Cluster due to it always being mentioned in the same sentence as other nearby clusters, subclusters, and the Virgo Supercluster. So I've been doing a little research to help myself understand it's extent and I now understand this: Virtually every galaxy I've seen anywhere near the direction of the constellations Vir/Leo/Com is part of the Virgo (Local) Supercluster, but I haven't actually seen that many that are part of just the Virgo Cluster itself!
So here is a link to something I threw together to highlight my findings: The Virgo I Galaxy Cluster PDF
I lay out the table twice - once in order of brightness (which is my favorite) and once in order of RA. I hope you all enjoy it and let me know if you have any thoughts about things I should add!