The issue focused on search engines being accused of manipulating traffic by altering rankings for ads they placed on articles they controlled. Google responded by implementing several technical improvements and conducting several investigations into how these ranking algorithms worked. Google determined that certain algorithms did indeed manipulate rankings for ads placed by Google Search publishers and removed those algorithms from search results. Google continued to investigate how search engines manipulate rankings for ads placed by publishers and ultimately concluded that Google Search publishers should pay Google Search publishers more money for ranking ads placed by Google Search publishers in Google