Investigating learning styles. Apart from Kolb-derived theories, this website - http://www.learning-styles-online.com/ - is interesting. It's a slight expansion on the more common visual-aural-kinaesthetic take. One idea for a research project might involve focussing on one learning style (if they exist!!...), say Aural, and investigating how well an online course catered for the Aural learners, perhaps as compared to other styles.

Saw a reference to Autogenics, which is recommended particularly for those who learn well in physical mode. It involves progressive relaxation (like in yoga) and was used by Russian athletes.

The whole field makes me focus in on the kind of area I would enjoy researching: how people learn / can learn more effectively, self-reflection / emotion in learning, and so on...