Email marketing is one of the most profitable strategies available to the online entrepreneur (and offline business owners, too).
Consider this: About 99% of your website visitors will leave without buying anything from you on their first visit. But by creating a great opt-in offer you can at least get their contact details -- and then use email marketing to follow up, build relationships, and turn them into paying customers.
And email marketing is by far the BEST and CHEAPEST way to stay in touch with your customers and build rock-solid relationships with them -- so they'll buy from you again and again! (This is called the "lifetime value" of your customers, and it's extremely profitable.)
