In the past year marketing agencies have leaped aboard the rolling social media bandwagon, urging their clients to include blogs and networking sites in their marketing and advertising strategy. But are they exploiting the benefits for themselves?

Not so much, it seems.  According to a new survey most agencies are active on key sites such as Twitter, LinkedIn and Facebook but rarely use them for marketing purposes or to attract new clients.

The poll of 212 agencies by RSW/US and Second Wind found that nearly three quarters are connected to LinkedIn, two thirds to Facebook and 56% to Twitter. But most use them no more than once a month, and half never tweet at all. More than half have blogs but two thirds of these add new posts as little as once a month.

If agencies aren’t using these resources, how can they possibly advise their clients about the best way to take advantage of them?

More details and quotes here.