Robert_Charlton - 9:19 am on Sep 5, 2013 (gmt 0)
I think the answer lies with more links.
IMO, with sites that have depended on artificial links, this may be leaving out some important steps.
Penguin was a spam penalty, and the site will have a bulls-eye painted on it. Google will certainly be monitoring for artificial link building.
Content very likely would need to be improved, design enhanced, and the site made more engaging... to the point where the site would attract natural inbounds. It then needs to be promoted socially. I don't think the process will work the other way around.