IntroductionHello all, I'm here to provide a miniature case study for you guys, so that you don't have to test it yourselves. I will update this thread whenever I find any changes. (please excuse my weird sentence structure. I'm sort of exhausted right now haha) Some Background Information Anyways, here's my problem. I own a site that has well over 500 articles on it, and it did amazing (to me) during the years of 2011 and 2012, netting in about $11,000 a year on its own. Unfortunately, I was new to SEO, and decided to do some weird link building techniques to it, and it degraded after that. I decided to disavow the links around the summer of this year, and a month later, it was climbing to the top yet again, and $40 days weren't uncommon. Here's the catch: those 500 articles were actually pretty thin, and by that, I mean that the articles were pretty weak, consisting of about 300-400 words each, with the occasional 500-600 word articles, and the rare 700-1000 articles. After the hummingbird update, I've noticed that the articles with 300-500 words started to do even worse in the serps, but the 600-1000 word articles excelled quite greatly (don't take my word for law. This is the case for me. It might or might not be the same for you). The Study Itself With that said, I've decided to update all of my articles on this site to that of a 600 word average while targeting LSI keywords, as well as using synonyms over the course of a couple of months. Here's what my test groups will consist of: New Generation - Articles that have been recently published (about a week ago tops), but contain weak content (300 words). Old Generation - Articles that have been published a while back (about 3 weeks to 4 months ago), but also contain weak content (300 words). Alpha Generation - Articles that will be published in the future, but will contain at least 600 words right off of the bat. In order to tell whether content itself will prevail. I will not do link building to these articles (blog comments, web 2.0s, etc.), other than publishing different articles pointing back to these articles on my other sites related to this niche. Note: This niche isn't all that competitive, so it may or may not reflect as greatly on your sites. If you have anything to add - such as what I should do, or any other useful advice - feel free to reply! Other than that, feel free to follow me on my case study!