We received a message from Google saying we have an extremely high number of URLs that are linking to pages with similar or duplicate content. The main difference between these pages are the Google charts we use. It looks like Google isn't able to see these charts (most of the text are very similar) and the charts (lots of it) are the main differences between these pages.
So my question is what is the best approach to allowing Google to see the data that exists in these charts?
I read from here http://webmasters.stackexchange.com/questions/69818/how-can-i-get-google-to-index-content-that-is-written-into-the-page-with-javascr that a solution would be to have the text that is displayed on the charts coded into the html and hidden by CSS. I'm not sure but it seems like a bad idea to have it seen by Google but hidden to the user by CSS. It just sounds like a cloaking hack. Can someone clarify if this is even a solution or is there a better solution?
