Unique content is being given more weight by Google recently, however fresh contents is liked by google from long time but in recent months, this topic was most blogged by blogger and SEO Experts.
As google is ready to come with Caffeine Algo in which more importance to real time results from twitter etc social media is being given which means that bloggers or webmasters have to come with unique fresh contents on their web sites with blogs or news to rank well in results.
It may be that very older web contents based web sites may go down a little in ranking when Caffeine comes because it will give a little bit more importance to real time media and news information sites.
So what are really Unique Contents, If you are expert in your niche area, you can just write on any topic in your niche and blog it on your blog and with little help of Social Media, you can provide these fresh contents to the Search Engine Bots.
A lot is being discussed about Caffeine Algo, but real testing will come when it will be officially launched.
So let us wait how much fast is Caffeine results and how much weight is given to Social Media, Fresh Contents, Site Speed and Site Structure.