While Bob DuCharme reminded a few months ago how much the famous LOD cloud growed from its beginning, I recently rendered the following graph that I'd like to share (click on it for full-size image).
It has been drawn based on the cloud history and the original ESWC2007 poster. Hopefully, such graph can be automatically done when we'll get a machine-readable description of that cloud, e.g. using voiD.