The document describes the services provided by GEF IW:LEARN III to support GEF International Waters projects. It provides knowledge management through its website, technical support including website hosting and training, targeted training workshops, learning exchanges between projects, and support for communities of practice. New aspects of IW:LEARN III include manuals for focal area managers, revised training on transboundary diagnostic analyses and strategic action programs, a project portfolio visualization tool, and a focus on groundwater projects and private sector engagement.