My suggestion... Each day look at the current world news items for unusual things, and derive a history question relating to that item.
For instance, today there's a story about Mubarak in the hospital. He ruled Egypt since 1981. Wikipedia says he survived six assassination attempts during that period, however the references given in Wikipedia don't say much about that; what were those attempts and how were they thwarted or failed, and who was behind them?
The idea here being to assemble deep information on currently relevant topics that people are interested in and will be searching for, but that isn't already easily locatable.
[Update] Or, in some cases the problem is that too much information is available, and the need is to boil the lengthy history down to the highlight points that explain why the current situation is behaving as it does. Something that'd go over well at a dinner party.