Today my friend Denya guessed that she must have sent and received 400 emails related to a project she manages for the annual SF Chronicle wine competition. "There has to be an app for that," we thought. Sure enough, there's a Google Chrome extension called Graph Your Inbox that lets you search for trends and visualize other data related to your inbox. It's pretty nifty.
From the extension description:
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 graphs of email trends over time.
Our inboxes contain a tremendous amount of information. Nearly every substantive action we take online generates email, from buying goods to booking flights to social network activity. Despite this large amount of data, extracting and graphing this information can be extremely difficult. Graph Your Inbox is an attempt to solve this problem. It was created by Bill Zeller, a PhD Candidate at Princeton University.
Update: By the way, Denya's guesstimate was almost correct. She averages 387 emails/year related to the wine competition.