What do you need to find out? - If you already know, click 'next'. If not, try this:
Start a mind map about your topic, put the topic title in the middle and use the following headings to get you started:
Names Dates Positives Negatives Technical Terms Other Useful Info
Expand the mind map by filling in what you know so far. Look for gaps or areas which do not have very much information - this is what you need to find out!