I'm working on #5 as well. Including videos and tools. People simply don't know enough about this. But others are right, it's being done on blogs a lot - the catch is doing it with interaction. I think that will break the mold.

I'm also doing #5 with college financial aid, tuition, etc. People don't know enough about this when entering. It took me years, but I know some amazing tricks now. Time to share.