H1, H2, H3 Placement, per W3C standards

Technically, the H tags should be structured like the outlines we used to have to write for our term papers back in school (yes, I went to school in the Dark Ages when we had to do these sorts of things)...

So, for instance:

H1: topic of the page (aka the title of the term paper)
H2: major topic #1
H3: sub topic #1.a
H3: sub topic #1.b
H2: major topic #2
H2: major topic #3
H3: sub topic #3.a
H4: sub-sub topic #3.a.1
H4: sub-sub topic #3.a.2
H3: sub topic #3.b

That's how I'd do it, at least.