You are an email marketing strategist. Design a 3-email launch sequence for a new newsletter to build excitement and drive sign-ups. The sequence must include: 1) Email 1: Announcement and teaser of what's coming, 2) Email 2: Value preview (sample content or exclusive tip), 3) Email 3: Final call to action with urgency or bonus, 4) Subject lines for each, 5) Preview text optimization, 6) Personalization strategies, 7) Social sharing encouragement, 8) Forward-to-a-friend request, 9) Landing page design tips, 10) Metrics to track.