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I am currently looking at taking on a small project website which was recently hit but we are really at a loss as to why so I wanted to open this up to the floor and see if anyone else had some thoughts or theories to add. The site is Howtotradecommodities.co.uk and the site appeared to be hit by Penguin because sure enough it drops from several hundred visitors a day to less than 50. Nothing was changed about the website, and looking at the Analytics it bumbled along at a less than 50 visitors a day. On June 25th when Panda 3.8 hit, the site saw traffic increase to between 80-100 visitors a day and steadily increases almost to pre-penguin levels. On August 9th/10th, traffic drops off the face of the planet once again. This site has some amazing links   http://techcrunch.com/2012/02/04/algorithmsdata-vs-analystsreports-fight/
http://as.exeter.ac.uk/library/using/help/business/researchingfinance/stockmarket/ That were earned entirely naturally/editorially. I know these aren't "get out of jail free cards" but the rest of the profile isn't that bad either. Normally you can look at a link profile and say "Yep, this link and that link are a bit questionable" but beyond some slightly off-topic guest blogging done a while back before I was looking to get involved in the project there really isn't anything all that fruity about the links in my opinion. I know that the site design needs some work but the content is of a high standard and it covers its topic (commodities) in a very comprehensive and authoritative way. In my opinion, (I'm not biased yet because it isn't my site) this site genuinely deserves to rank. As far as I know, this site has received no unnatural link warnings. I am hoping this is just a case of us having looked at this for too long and it will be a couple of obvious/glaring fixes to someone with a fresh pair of eyes. Does anyone have any insights into what the solution might be? [UPDATE] after responses from a few folks I decided to update the thread with progress I made on investigating the situation. After plugging the domain into Open Site Explorer I can see quite a few links that didn't show up in Link Research Tools (which is odd as I thought LRT was powered by mozscape but anyway... shows the need for multiple tools). It does seem like someone in the past has been a little trigger happy with building links to some of the inner pages.