Internal Links

Hi all,


Here's my question: reading the different SEO guides, they all say it's important to have a good number of internal links. The suggestion is to have a nav bar on the top of the page, and replicate it.
So, which is the best way to do this?
a) Replicate it once, in the footer, in smaller characters.
b) Replicate it twice (giving me three nav bars for each page), in the footer AND on the side of the page?

The main aim is SEO, not aesthetics. The guides have different opinions, I'd like to know yours.

Thank you very much,


Cthulhu.