SEO Headings Elements
Correlation studies have posited that Google adds some weight to H1 elements (and other studies claim the contrary).
While the THEORY of a benefit is sound, for me there is little hard evidence that H1-H6 headings improve seo performance (in Google). I would CERTAINLY NOT want to see a keyword phrase I am targeting appear in every Heading element.
Consider using H3 Elements for useful link groups to other relevant sources but recent advice (2013) would be to try and keep headings for TEXT content and not to group template navigation, for instance.