I have a client's website. Last few months before the Google Updates, my client's website was in the 2nd and 3rd rank in Google search. Until the Penguin Update released, all our top pages were hammered down into 2nd Google pages, some were in 4th and 5th page. What are the best SEO and linking strategies for these days? I been using article submission, blog linkwheel and social bookmarking for my campaign. I also produced unique article for article submission and blogging. In the few days, I found out some movements for the pages' ranking (Google dance) but still not enough. Please help me and suggest some techniques to be use in my campaign. I was so worried and depressed. Thanks a lot.