Marketing Channels How to get more email opt-ins and promote your business A guest blog by Authority Hacker It’s been well-documented over the years that the ROI on email marketing can be $30, sometimes even more,… Marketing Channels 5 strategies to increase email opt-ins and repeat bookings A guest blog by Axelle Dervaux 65% of revenue in the global travel and tourism market came from online sales channels in 2020. In…