I found this little extension while reading Flowing Data. I am not sure I want to graph my conversations, especially with Amazon. I know I spend too much money there already.
Graph Your Inbox is a Google Chrome extension that allows you to graph Gmail activity over time. You can use it to visualize your communication with friends, your Facebook activity, when you purchased items on Amazon or how often you use certain words or phrases. We provide the same search functionality used by Gmail, but instead of a list of messages we show you a graph of your email trends over time.
via Graph Your Inbox.
