The folks over at Wunderman, a global marketing agency part of the WPP Group, got a chance to catch up with us last week at SXSW to chat about using social media to discover leads and build relationships more effectively. This was a real honor for us since Wunderman knows a thing or two about CRM and social media marketing. In 2012 they were ranked #1 CRM/Direct Network worldwide and #1 Digital Agency Network by Advertising Age. Check out the…