If you want free online training in managing research data, then Research Data MANTRA may be the site for you. It is a course designed for PhD students and anyone else who needs to plan a research project using digital data. The course is modular. Existing sections include:

• Data management plans
• Organising data
• File formats and transformation
• Documentation and metadata
• Storage and security

while two additional sections, Data protection, rights and access, and Preservation, sharing and licensing, are both still in development. You can work through all the sections or just skip to the ones relevant to you.