For the survey, conducted online in March, Zogby asked more than 7,000 people across the country to rate their customer experiences with 140 leading companies in 14 industries, including airlines, hotels, insurance companies and big-box stores such as Wal-Mart. Respondents could answer "excellent," "good," "fair," "poor," "not familiar" or "not sure."
The companies in the Hall of Shame were ranked by the percentage of people familiar with a company who answered "poor."

The companies in the Hall of Shame were ranked by the percentage of people familiar with a company who answered "poor."
