Most Expensive Keywords 2014

How does Google make money? Surprisingly, 97% comes from online pay-per-click advertising. Here we can’t get enough PPC; that’s why we decided to conduct some research and find out what the most expensive keywords are in Google. Some of our results about the most popular and most expensive PPC keywords were to be expected, while some (like cord blood and mesothelioma treatment) surprised us and our readers.