First I see you give away free document templates, I would ask for something in return for these, such as email address, you can then start an email list to further market to (drip marketing). The other thing that stood out was the URLs, they are far too deep and should be more targeted towards search phrases, e.g.

http://www.human-resource-solutions.co.uk/HR-Policy-Pages/Discipline-Grievance/Discipline-Grievance.htm

Could be

http://www.human-resource-solutions.co.uk/discipline-grievance-policy.html

Using a CMS makes this easy, as it does all the linking and hardwork for you, I use cms made simple (or wordpress, if a straight news/blog site)

That DWP pdf you also link to (cant remember the page), why not rewrite some of it to put on your site as static pages? Therefore creating more pages targeted toward keywords etc.