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You can/need to build links from within the domain to thePDF report you want to share also. Links within the PFD file will also help for people who share the file via email, and not within the site. This will bring people back to your domain.

When I search Google.com for "Career Change" I see your home page as the # 9 result. I would share if you change your title to "Career Change" it would be better for ranking purposes. This change alone may or many not make an immediate difference, but once your ranking stabilizes and you are sure no other factors are an influence you may wish to experiment. The only reason to add other words to the title is if you felt it would help your Click Through Rate. Generally speaking I try to rank as high as possible first, then adjust for CTR. I would therefore remove the "Can we Help You" from your title.

Correct.  And then your text navigation will be user friendly things like 'products' or 'home' rather than a 2 or 3 phrase keyword.

Yeah I'd recommend consolidating the content onto one page, and 301 redirect the old pages to the new version. If there are clear differences between 2 or more sections of the content then it's not a problem to have those parts of content on separate pages as they're targeting different keywords. The less "thin" content, the better. Cheers Rob

I'd say it's definitely worth adding to the homepages. If people like your client's website/brand, they might just +1 it, and it is a page that can constantly build up its +1s, rather than potentially out of date posts.