Cleaned up the data a little, and created a new visualization to better demonstrate the split between the two connected clusters. The center of the smaller one is a Gov Palin email address that has the “Gov Sponsored” qualifier.
It looks like this email address was used for her constituents to get in touch with her.
Lots of cleanup left to do in the code parsing/cleaning up the emails, but here’s a first pass. Seems like at least two connected networks, and surprisingly both the yahoo and the Gov’t email addresses are both in the larger one. I wonder what the smaller one comprises of?