Panda has run recently, does the the drop coincide with that date? Normally there is a shake up in the week leading up to it.

I suspect that someone may have made changes before you go there and they have not given you the full picture.

Was there any issue with the server during that time and the pages speeds were slow or not loading. WMT should give you some indication of the decline, even how dramatic the drops were and what kind of pages were dropped.

FYI you are better to remove the meta descriptions from the pages that have duplication than keep them there, but the best course of action is of course to re-write them.

If you care to share the URL we can all take a look and see if we can spot anything.

Forget about those others sites, focus on you one good site and make it as best as can be.

If it is clear to see that he owns multiple sites in the same niche the by all means report him, especially if they all link to each other.

Focus all your efforts on making your business as best as it can be and try to forget about the people around you.

Please try looking at "First Click Free" by Google

https://support.google.com/webmasters/answer/74536?hl=en

I think this is along the lines of what you are looking for.

I took one look at the code and was amazed by how much is inline. Most of it should be in js and css files. I noticed the solutions pages many of them don't even have title tags! What's going on there? That needs seo attention and is a big no no for coding. This leads me to believe the code needs very close inspection. It surly cant take that long to strip a whole bunch of that code out of each page or template.

If a page is slow to load or pulls in external js files as well you can have scripts try to execute before the required code has loaded. This is probably what is happening some of the time and would explain the inconsistent nature of it.

Run the site through a bunch of validators. I am sure you will find a bunch of stuff.

There is a great article on this site about it

http://moz.com/blog/keyword-volume-tools

OK, so as I expected there would be nobody able to answer this question

So I asked John Mueller at Google!

I got a very precise answer.

widget

A div with an onclick is nofollow. so this would be a bad idea if you want internal pagerank to flow.

Currently the only way to make your clickable areas functional and Google friendly is this way below:

widget