Three stages: TOFU (awareness — blog posts, social, paid reach), MOFU (consideration — email nurturing, case studies, retargeting, lead magnets), BOFU (conversion — demos, consultations, direct offers). Most small business funnels break at MOFU — they get visitors and can close warm prospects, but have no system to stay in front of leads between first contact and purchase. Email nurturing is the most reliable MOFU fix. Map where your funnel breaks and fix MOFU first.