Several sponsors, including McDonald's and Johnson & Johnson, were disappointed by the number of visitors to the Olympic Green, a huge space around the Bird's Nest Stadium.
The Chinese have now introduced a new ticketing system and the number of visitors to the Green is expected to climb from 40,000 at the beginning of last week to 200,000.
Sponsors including Johnson & Johnson and Coca-Cola have now professed satisfaction with people numbers, which have risen in part due to the start of the track and field events on Friday.
In a setback for Nike and the host nation, China's Liu Xiang today pulled out of the 110m hurdles with an injury, losing the chance to follow up his gold medal from the Athens Olympics. The sportswear brand and credit card company have focused their domestic marketing heavily on Xiang.
In a hugely successful weekend for Britain's athletes, swimmer Rebecca Adlington provided a highlight with a second Gold medal and a new world record in the 800m women's freestyle on Saturday.
The Olympics are facing increasing criticism about the number of empty seats at events, which some media have attributed to the Communist government's reluctance to see large uncontrolled crowds.
According to The Times, blocks of tickets went to Communist officials, who have obeyed orders not to hand them out. But the resulting empty seats have led to the Chinese bussing in uniformed volunteers to fill them.
Western media have also picked up on the organisers' unusual tactic of using sticky tape to obscure any non-sponsor brand names within the Olympic facilities, from lift manufacturer Thyssen-Krupp to American Standard faucets.