If you are able to consult with customers one-on-one, ask any new clients how they heard about you. This will be trickier if you own a restaurant or clothing store since you won’t be able to track down every customer to ask how they heard about you. In these instances, consider asking customers to take a survey on every receipt. Offer an incentive (coupon, discount, etc.) to increase the chances that people will actually fill it out.
Julie Ewald recommends moving away from sending generic content to your whole email list via e-blast entirely. With a little elbow grease, you can utilize segmentation and start sending off tailored messages to each of your lists with content that’s relevant, valuable, and designed to resonate with the kind of recipients that make up each segment.