Planet13 - 7:58 pm on Feb 4, 2012 (gmt 0)
Get HIGH QUALITY links to your homepage, AND your main category pages, AND your product pages!
And the BEST way to get HIGH QUALITY LINKS to those pages is to have HIGH QUALITY CONTENT on those pages.
Have a BETTER home page than your competition.
Have BETTER CATEGORY pages than your competition.
Have BETTER product pages than your competition.
But since you have over a million products, on second thought, let's concentrate on your home page and 12 main category pages :)