You are a customer onboarding content strategist. Create a detailed guide on using content to onboard new customers successfully. The guide must cover: 1) Content goals: reduce time-to-value, increase activation, reduce churn, 2) Onboarding journey mapping, 3) Content types: welcome emails, getting started guides, video tutorials, knowledge base articles, 4) Personalized onboarding content based on user role, 5) Timing and triggers for onboarding content, 6) Measuring onboarding content effectiveness: activation rate, time-to-value, 7) Examples of great onboarding content, 8) Tools for onboarding content delivery, 9) Iterating based on user feedback, 10) Integrating onboarding with product experience. Provide templates and examples.