Good question. The ad looks like an innocuous link to www.nytimes.com, but clicking on the link actually goes to https://www.googleadservices.com/pagead/aclk ht

Good question. The ad looks like an innocuous link to www.nytimes.com, but clicking on the link actually goes to https://www.googleadservices.com/pagead/aclk https://www.googleadservices.com/pagead/aclk. (I didn't try actually clicking the link.)