Your blog is your voice to the outside world. And if you want people to interact with you blog, you have to display some personality in your posts.  Now, the extremes of this scenarios are when you have all personality and no meaningful content.  You are the equivalent of Paris Hilton, fun to look at and converse with for a minute or two, but you then realize that there is nothing of substance to what she is saying.  The other end is great content; smart, insightful but with no personality. Congratulations, you are Ben Stein calling out “Bueller? Bueller? Bueller?” So you have to find the right balance between your mind and your personality.  The problem? You have to find the balance that works for you.  No one can really tell you how much personality you need or how much more content you need to inject.  It’s a certain amount of trial and error.