That’s according to research by email vendor EmailLabs. Average read-time (yes, this is a new metric for email marketing) is a measly 15 – 20 seconds for an e-newsletter or email promotion. Useful article in MarketingSherpa explains exactly what this means and offers specific suggestions for limiting your email to one story OR one promotion in order to prompt higher click-throughs from time-strapped readers. In addition, tips for how to segment your list to see what design layout and content work best. Article is free until Jan. 23rd.