This document discusses the MANTRA project, which aimed to raise awareness of research data management issues through open online training materials. It describes the creation of an eight-unit online learning module covering topics like data management plans and file formats. Practical exercises were also developed for software like R, SPSS, NVivo and ArcGIS. The materials were authored using the open-source Xerte authoring tool and released with a Creative Commons license for reuse. Key success factors included academic commitment, positive user feedback, increased advocacy, and evidence of use beyond the original context.