ACT! - The #1 best-selling contact management solution, used by millions and praised by experts around the world. Instantly access every contact detail! Use ACT! to manage all your customer information in one place and stay on top of your schedule with ease, create personalized marketing campaigns, and meet your sales goals with confidence. You can even share complete customer information in a workgroup environment and use it with Microsoft Outlook, handheld devices, paper organizers, and other popular products.