If you need a quick review of world faiths then this primary school website is just the thing: brief, to the point and clearly shown, you will grasp the facts in minutes!
Or perhaps you can watch some YouTube clips to bring you up to speed on world religions. This one show’s how world religion spread across the globe:
This YouTube clip isn’t very inventive and is more like a powerpoint with music attached:
Again we have basically a teacher’s powerpoint made into a YouTube clip; but it is informative: