1 BUSINESS SOCIAL NETWORK SERVICES BETWEEN ONLINE AND OFFLINE Business Social Network Services Between Online And Offline Ivana Pais Università degli Studi di Brescia Author note Ivana Pais, Department of Social Science, Università degli Studi di Brescia. Correspondence concerning this article should be addressed to Ivana Pais, Dipartimento di Studi Sociali, Università degli Studi di Brescia, via San Faustino 74/B, 25122 Brescia. E-mail: pais@jus.unibs.it.