Posting sporadically or inconsistently. Social media, like blogging, is a marathon – not a sprint.  Even if your very first blog post or tweet gets tons of clicks, there’s no guarantee that the next one will do the same.  Measurable results aren’t instant.  So don’t be a drive-by Tweeter or LinkedIn group poster.  You know the type:  they come in and post five or six comments….and then you don’t see them for weeks or months. Plan your day so that you spend a few minutes every single day posting, responding to tweets, thanking new followers (and please don’t bother thanking me if you’re planning on using an auto responder to do it!), and being part of the social media community. No matter how busy you are, on most days you can find 15 minutes to check in on Twitter, LinkedIn and Facebook.  I find that I get an awful lot done while standing in line at the lunch counter, waiting for meetings to start, and while eating lunch at my desk.