Many CEOs at top PR agencies are not active in social media: Should they be walking the walk?

How active with social media are chief executives at 11 of the top PR agencies? For instance, do they have Facebook, Twitter and LinkedIn accounts? Do they blog? PRNewser researched these questions and published the answers. It turns out the social media footprint of most of these CEOs is unimpressive. This prompts the question: If these head honchos are talking to clients about joining social media, should they then be walking the walk? (By the way, the PR CEO on this list who appears to be mo…