Did you know that almost half (44.4 percent) of marketers claim to have “advanced” or “expert” abilities in social media? Facebook (87.7 percent) and Twitter (82.7 percent) lead as the most popular social platforms, ahead of Google (54.9 percent), YouTube (48.9 percent) and LinkedIn (46.9 percent). These findings come courtesy of SEOmoz and Hubspot, who surveyed 6,491 marketers about how they are using social media, and have visualized their data in the infographic