I have made this letter longer than usual, only because I have not had time to make it shorter. ~Blaise Pascal (1623-1662).
We are inundated with information. People are starved for time and as such they greatly respect and value short correspondence, articles and blog posts.
If you want people to read something, make it short and concise. A paragraph that runs five sentences long is daunting and there is a good chance that the reader will not read it.