I pretty much have all the on page factors covered. I'm sending a ton of links in natural fashion to the pages I really want to rank and they area all keyword specific landing pages. Yet when I search the term I have trouble getting past page 2-3 yet half of the spots on page 1 aren't keyword specific and knowing some of the site owners, I know they aren't constantly adding new content to the specific page.

So what's keeping my site from hovering on page 2 to sticking on page 1?