The document discusses strategies for implementing smart city knowledge platforms and open data. It describes how knowledge platforms can provide access to new information, open data, connect users, and enable collaboration and innovation. As more people live in cities, knowledge platforms and open data can help manage information more efficiently to improve quality of life. Successful implementation requires addressing barriers like cultures opposed to openness and data quality problems. Open data offers opportunities to analyze and visualize data from different sources which is important for addressing societal challenges in smart cities. Several initiatives for open data are also described.