The first part brings the review of theory and practices of private information business in the developed countries with the special point on the differences between American and European environment. The second part describes the organization methods and marketing for the first private information service in Croatia. It brings relevant theoretical way and positive practices, research of user needs and permanent education, planning and organizing services. The years-long experience has shown that the main customers are Croatian libraries. Statistics has shown that the offer includes cataloging, permanent education and consulting. Brings the statistical analyses of services and users.