The search engine industry is constantly changing at a very fast pace with frequent changes and Google being the king of search engines rolled out 27 updates/changes in year 2012 to improve user experience and filter out spam results. Those who have been in this field would be knowing the changes which have happened in year 2012. You need to remain updated and take productive actions based on the updates made by the search engines specially Google to sustain the competition. There are some things which needs to be taken care while optimizing a site, you can read that here Must know SEO Tips.
So the major updates by Google in 2012 have been put up in an info graphic by e2msolutions. Lets see what they are:
Image Source: e2msolutions