Email marketing delivers ~$36 ROI per $1 spent. Your list is an asset you own — algorithm changes can’t reduce your reach. Build it with a specific, valuable lead magnet. Place opt-in forms within blog content, on your homepage, as exit-intent popups, and on dedicated landing pages. Send a strong welcome sequence delivering the lead magnet, introducing your brand, sharing your best content, and including one soft ask. Send at least weekly. Segment by behavior and interests. Remove unengaged subscribers every 3–6 months to protect deliverability. A smaller, highly engaged list dramatically outperforms a large disengaged one.