Tesla founder Elon Musk made waves when he tweeted that he was considering taking the electric car company private.
The tweet, which generated wild trading in Tesla stock and reportedly sparked a federal investigation, illustrates the perils of C-level executives acting on their own on social media.
Social media usage—both for personal and business use—is so widespread that occasional social implosions like the Musk tweet are relatively commonplace. How widespread? eMarketer estimates that roughly nine out of 10 companies use social networks as a marketing tool, and that level of involvement has been steady for years. Read the rest at eMarketer.