I just ran the following code on the 2009 archive of my inbox.
grep "From: " 2009|cut -f 1 --complement -d " "|sort|uniq -c|sort -nr|less
I received the most email from bots and scripts, among them WordPress.com, Twitter and Facebook. Of the real people here are the top 5 names you may recognise:
This was of course inspired by Matt’s post in January. I should do the same for Twitter replies/messages and for blog comments. I somehow doubt there would be much overlap between Twitter DMs and emails.