Many website studies report as much as half of our marketing time is spent in email. Others put it at a much higher percentage. As far as the rest of the day goes, one batch of studies have marketers working more than 12 hours a day while only accomplishing 6 hours' worth of real down in the trenches work. I would quote sources but the search for this information provided so many of them that I would not even know where to begin. Besides, if you are a marketer, you already knew this information.