Crowdsourcing is defined as the process of obtaining needed services, ideas, or content by soliciting contributions from a large group of people, especially an online community, rather than from employees or suppliers. It is the practice of engaging a ‘crowd’ or group for a common goal — often innovation, problem solving, or efficiency. This phenomenon can provide organizations with access to new ideas and solutions, deeper consumer engagement, opportunities for co-creation, optimization of tasks, and reduced costs. The Internet and social media have brought organizations closer to their stakeholders, laying the groundwork for new ways of collaborating and creating value together like never before.CitizenLab is a crowdsourcing solution and collaborative decision-making tool for city governments.