Want to grow your email list fast? Offer something of value in exchange for a prospect’s contact information. Use your know-how to create a podcast, video, online course, white paper, eBook, or contest. Make your offering available with a simple registration that includes the target’s email address and grants permission for you to send follow-up messages. When the offer is related to the product or service you sell or a problem your business solves, you increase the chances that the recipient is a qualified prospect.