What can you do to avoid mixing business with personal usage?
When it comes to socially engaging online with coworkers, think carefully before you invite all of your coworkers to be your friends online. Consider exactly what information you want to share with them versus what you want to keep private.
In the end, when faced with the temptation to combine personal and business accounts for social, managerial, or any other reasons, draw a clear line and keep them separate.