Editorial remarks.-- Open discussion: Lessons from relevant experience ; Economies of scale in water services.-- Meetings: Building Commitment, Efficiency and Equity for Sustainable Water Services ; Future Challenges for the Drinking Water and Basic Sanitation Sector in Colombia.-- Courses: Analysis and Challenges for Institution Building in Public Water Services.-- News of the Network: Water Code of La Pampa Province, Argentina ; National Water Resources Policy of El Salvador ; Sectoral Water Resources Fund in Brazil ; Special Law on Drinking Water and Sanitation Committees of Nicaragua.-- Internet and WWW News