What is Google making money on? Top 20 most expensive words in Google Adwords

Google currently receives $ 3 billion a month in advertising - most of which comes from text ads next to search results.

"Insurance" (Insurance) is the most expensive keyword. A click on the advertisement of this request costs the advertiser $ 54. On "insurance", Google gets 24% of advertising revenue.
In second place is the key word "Loans" (loans, loans). Here, a click will cost $ 44 and this is another 13% of search advertising revenue.