"When it comes to lowering costs on families," Haworth said, "Google has overcharged advertisers and publishers by nearly $2 billion. That's just over the last four years. That has inflated the price of ads, it's increased the cost of doing business, and, of course, these costs get passed down to us when we buy things online."

The judge who will decide whether Google holds a monopoly over technology that matches buyers and sellers of online advertising must choose whether to believe what Google executives wrote or what they