 15 years ago in 2003 delegates from 175 countries met in Geneva, Switzerland to adopt the Declaration of Principles and the Geneva Plan of Action, committing to build a people-centered, inclusive and development-oriented information society. This was the first UN summit open to all, and it identified 11 concrete action lines in the Geneva Plan of Action. Since then, this uniquely inclusive process includes the annual WISIS Forum, WISIS Stoptaking, the WISIS Prizes, the United Nations Group on the Information Society and the Partnership on Measuring ICT for Development, to take stock of the positive impact of information and knowledge societies on people's lives around the world. It has continued to grow alongside new technologies, offering new opportunities for impact. With the advent of the United Nations 2030 Agenda for Sustainable Development, the WISIS process has been closely aligned with it, creating a clear link between the WISIS Action Lines and the Sustainable Development Goals, or SDGs. As information and communication technologies are increasingly vital in achieving the Sustainable Development Goals, we need to make sure that no one is left behind. During these last 15 years, the same spirit of multi-stakeholder inclusivity, youth engagement and partnership has remained, along with real impact on the ground. The WISIS Stoptaking database has collected thousands of ICT innovations and solutions for the SDGs, with examples of initiatives and projects benefitting people around the world while the WISIS Prizes highlights the most exceptional ones. Come and join us this year at the WISIS Forum, from the 19th to the 23rd of March 2018 at ITU Headquarters in Geneva, and help carry on its success to 2025 and beyond, ensuring that ICTs and the WISIS Action Lines continue to play a crucial role in the achievement of the Sustainable Development Goals.