On Site Problem Caused Rankings To Drop?

[SamCUK]

I'm getting to the bottom of why my site dropped rankings on the 9th March. I noticed that in google there is a cached version of my site on 9th March at 8.37am which is when my rankings dissapeared. Presumably this is when google last crawled my site? I guess this means that google found something on the home page or on the site that it didn't like? I wonder if anyone can take a look and let me know if there's anything obvious. Could it be a duplicate content penalty as I have lots of categories pulling content from the same posts?

[SamCUK]

Sorry the site is http://www.top-10-dating-reviews.com (there is some adult content on the site)

[StreamlineMetrics]

It's hard to diagnose exactly what happened going off only the info you provided. Has the site seen a drop in rankings for all of your keywords, or just certain ones? How much of a decrease? And all your pages? Or just your homepage? Have you made any changes recently either to on-site content and/or linkbuilding? Have you received any messages or noticed anything unusual within Google Webmaster Tools?

[SamCUK]

Drop for all keywords and pages which have pretty much disappeared. Previously they were in the top 30 or so. I added a lot of categories for local counties but deleted them as they were just pulling content from posts and I thought I could run into duplicate content issues that way. They were only live for a few days. I submitted a reconsideration request and got an email back saying no manual penalty had been applied. I think it's a duplicate content issue. If you look at my categories I think they're too similar. No duplicate content warnings in webmaster tools though.