Well, this one isn't as interesting as the user graph that I made, as there aren't really well defined communities of tags that are emergent through visualization. Nonetheless, it does give some sense of the relationships that exist.

I lightly modified my last script to collect the data. An edge between tags X and Y is added when there is a user A, who follows tag X, and a user B who follows tag Y, and user A follows user B. Not as explicit of a relationship here as there is between followers and followees, so I suspect that contributes to some of the muddiness.

Anyway, enjoy. Works best in chrome. Click stop layout to plot the edges. Hover over a tag to hide all tags that are not directly connected to it.