This book shares practical insight to the delivery of knowledge sharing platforms. The prime focus is on community level or external knowledge sharing (between organizations), which is a research area with less empirical and contributing literature. Empirical investigation is based on the development professionals' experiences working in different organizations (DFID, SIDA, OXFAM, WB, and UNDP). After exploring the existing knowledge management and sharing practices of these organizations, the book has identified the "Cultural" and "Technological" challenges facing wider use of these sharing systems. There are practical suggestions for knowledge management and sharing system Developers, Policy and Decision Makers and System Users, to improve the overall contribution of knowledge sharing in better risk management.