In the eighth annual Burson-Marsteller/PRWeek CEO study, CEOs offered their opinions on a range of issues including social media, Word of Mouth, digital, crisis, CSR and research and measurement. 

This year's key findings include:

• CEOs disagree about the effectiveness of using social media to reach stakeholders, with 29% saying that social media is an effective communications tool and 29% saying it is not.
• Most CEOs do recognize the value of digital, with 71% reporting that the company website is the most effective means to communicate with stakeholders during a crisis.
• 42% of CEOs say Word of Mouth is one of the three biggest influences on a company's business today, second only to The Wall Street Journal (51%).

Here is a presentation that includes several more key findings.

Update: BusinessWeek's Managment IQ blog weighs in on the survey.