Last week BioMed Central published a draft position statement on open data (PDF). Iain Hrynaszkiewicz explained the statement on the BioMed Central Blog, including the five Ws of open data: 1. Why make data more open? 2. What data to make more open? 3. Where to make data more open? 4. When to make data more open? 5. How to make data more open? Please comment on the statement.