When lecturing this is the order that I will be following, so, on top of the first page of notes write geography, on the 2nd page of notes religion, etc. That will give you an easy way to organize your notes. Also, you will be better able to insert notes from the reading and blog to fill in the gaps.
I also recommend the Cornell Note taking system . It is extremely effective for allowing the supplementation of classroom notes with materials from the reading.