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What about the content? Low quality or high quality and informative?

Verify your website in https://www.google.com/webmasters/ (google webmaster tool).

If you have spammy, unnatural links they'll send you a warning, but they won't tell which ones are bad.

No personal experience with outsourcing content creation, tho you might just take a look at: http://www.ghostbloggers.net/ It gives you a good idea about the prices as wel.

I agree with Jonathan on this. Go for the long term strategy and build authority on just one domein instead of splitting everything up into small websites.

1. If you have new pages that are similar to the old content, then 301 redirect to those. If not catch up the linkjuice on the homepage.

2. Just sharing links on facebook will get your very little to no interaction. Incentivize people, ask them a question related to the article (addressing some kind of problem or something).

We don't know which niche you are operating in, but maybe you have authority websites that are posting about your niche? Announce there that there are new owners, maybe new products? Tell them your story...

I find guest blogging more effective than just sharing on social media...

Your PA & DA are ok but the higher they are, the better

Already have many good links pointing to your website? You might consider to start out fresh on a new domain and contact the webmasters of the good links to change them to the new domain...

Just as Broadbeach Media said is the canonical tag to indicate pages with similar content. Big advantage is that you can tell Google which one is the important one and needs to be indexed.

More detailled info you can find here: http://support.google.com/webmasters/bin/answer.py?hl=en&answer=139394

Normally every four weeks, now it has been a while:

http://apiwiki.seomoz.org/w/page/25141119/Linkscape Schedule for the update shedule.

My guess is that the linkindex from OSE still hasn't been updated, and therefore is not showing your new backlinks.

So weird because the page is fully in dutch, the only english words on there are Copyright and disclaimer if i'm not mistaken.

But might look into the language issue as well.

My guess is that the linkindex from OSE still hasn't been updated, and therefore is not showing your new backlinks.

Verify your website in https://www.google.com/webmasters/ (google webmaster tool).

If you have spammy, unnatural links they'll send you a warning, but they won't tell which ones are bad.

1. If you have new pages that are similar to the old content, then 301 redirect to those. If not catch up the linkjuice on the homepage.

2. Just sharing links on facebook will get your very little to no interaction. Incentivize people, ask them a question related to the article (addressing some kind of problem or something).

We don't know which niche you are operating in, but maybe you have authority websites that are posting about your niche? Announce there that there are new owners, maybe new products? Tell them your story...

I find guest blogging more effective than just sharing on social media...

Your PA & DA are ok but the higher they are, the better

What about the content? Low quality or high quality and informative?