Marketing the 21st century library and information organization to its customers using Web 2.0 tools is a hot topic. These proceedings of a conference held in Stockholm, August 2010, focus on the marketing applications and (non-technical) aspects of Web 2.0 in library and information setups. The papers included (in English and French) explore and discuss: General concepts of Web 2.0 and marketing of library and information organizations; how libraries are adopting Web 2.0 marketing strategies; marketing libraries to clients using Web 2.0 tools; international trends and Interesting cases of marketing through Web 2.0 tools.