Valentijn Tempels / Shutterstock In 2013, 183 billion emails were sent every day, according to the technology-research firm Radicati. The firm predicts that by 2017, it will be nearly 207 billion. This is a gold mine of information for communications research, but an overwhelmingly daunting one. Attempting to analyze all of it would be like Scrooge McDuck diving into an ocean of gold, and then drowning in it.