The Google search engine has been updated beginning of this month.
In the States, beginning of May several sites complained about losing their position in the Google search pages (for instance, hubpages).
Google waited for an official announcement but eventually confirmed on May 2Oth that an update has been performed.
SearchEngineLand give some details, SEO specialist Glenn Gabe named this update Phantom 2 and Paul Edmondson describes all the problems caused by Phantom2.
If you have been affected by this update and that you have lost your position in the search pages, our SEO specialist will help you to regain your rank.