Hey! At the begining of May, the SERPs changed daily. If I builded some new links, linkwheels the SERPs went up, or some times down. But last 10 days there is no change whatever I do...I have builded many links, and some of them are shown in Webmasters tools, but SERPs havent changed nothing. This problem is not on one domain only, but on all Iam optimising.