The use of social media by employers has been escalating, according to a recent survey by CareerBuilder, an online recruiting service. Seven in 10 respondents say they use social medi screen candidates. What they are looking for varies. The most respondents (61%) said they are looking for informi that supports their job qualifications. Fewer said they are checking whether applicants have a online professional persona (50%), want to see what others are saying about the candidate (3 and want to see if they find a reason not to hire a candidate (24%). %