I discovered Mr. Donn more than six years ago. Actually, I’ve never met Mr. Donn, but I revere him–and owe him my life several times over.
Naturally, Ancient Civilisations are a hit with most students: it’s the main section I use. Somehow, Zeus threatening people with lightning bolts and Poseidon sinking entire cities are always popular. The free PowerPoints make things really easy, especially if a student has given orders for a Vulcan story or some such thing.
The students also like to see how English people study Ancient China. While they’ve laughed at a few things, and corrected some others, there hasn’t been anything that actually contradicts what they’re taught in school. (Do check new resources before you show them to the students, though, just to make sure they fall within our cultural recommendations.)
I’ve also used the Holidays resources when my students had questions about specific holidays.
Let us know in the comment section if you find anything that works particularly well with certain levels or personalities.