I just wanted to know how does panda update will affect my site, what should i look for in my website. My sites are 2 years old since last year November I have been putting more hours into it. So I can see traffic rising. But to satisfy myself what should i bee seeing.. Also I was reading about this update and one of the suggestion was to have unique content. I have that cover no problem. What I wanted to ask is when do link building link web 2.0 i used spin article 70-80 %unique. Is this ok or I need original content for that as well. Not everybody ca afford that.