Tomorrow, Google begins penalizing mobile sites that have “intrusive” pop-up opt-ins. Rather than overreact and take down your lightboxes and pop-ups (that likely bring you the majority of your email subscribers), there are other options. And remember, our belief is if your entire business depends on a single source of free traffic, you’re constantly at risk. Diversify and figure out how to make a profit by paying for traffic, too. … Continue Reading