Very difficult. They want fresh content. Real time. SEO is dead until the waters calm down a bit at Google.
Caffeine is all about speed as far as i can see. Be it pageload speed or content update speed. But, the basic are still same.
Google Caffeine can give us better results and some searchning techniques is also changed. For more info about Google Caffeine Visit http://seo-secret-blog.blogspot.com/
So social marketing. I use onlywire, ping.fm and hellotxt to update my 100+ social notes continuously
You may consider reading these comprehensive sources just specific for "caffeine" update Google Caffeine and “SEO†Google Caffeine SEO Notes
There are many blogs written on this topic if you had just googled it. Any ways, as per my knowledge a fresh content and a new domain will get about 50% or more boost to their site.
So links don't work anymore? Why is fresh content so important, what about people who are searching for something for the 1st time? S