Robert_Charlton - 7:48 am on Jul 17, 2012 (gmt 0)

You wrote...

I think the main problem for me may have been too many internal links using KW anchor text, which the guide tell us to do.

This is what I'm seeing in the Guide that relates to internal links and KW anchor text...

Think about anchor text for internal links too You may usually think about linking in terms of pointing to outside websites, but paying more attention to the anchor text used for internal links can help users and Google navigate your site better. Avoid: - using excessively keyword-filled or lengthy anchor text just for search engines - creating unnecessary links that don't help with the user's navigation of the site

What am I not seeing that led you to "too many internal links using KW anchor text"? I can think of lots of discussion on various SEO forums, but I don't see Google suggesting this approach.