Facebook vs. Twitter vs. LinkedIn vs. Google+

Unlike, say, the email that keeps piling up in my Inbox, available time for social media is not an ever-expanding commodity. Which means that even though engaging with readers on social networks is a key part of my job, it's getting close to triage time. If social media isn't a core part of your job, you may be even closer to social media overload and looking to decide where best to put your efforts. Here's what I find to be the strengths and weaknesses of each: