Ask a stimulating question. Ask your subscribers a question and invite them to reply to your email to answer. You could ask what they’re struggling with (related to your topic), how they found your site, or what challenges they’re facing right now. This information is also marketing gold for you — it gives you ideas for more autoresponders, blog posts, podcast episodes, and other content.
Online surveys: Consumers are asked to complete a survey, including their demographic information and product and lifestyle interests. This information is used as a sales lead for advertisers, who purchase the consumer's information if provided. The consumer may 'opt-in' to receive correspondence from the advertiser and is therefore considered a qualified lead.