Many of my small business clients ask me: "What is a blog and do I need one?" As a marketing consultant and business coach, I too had to address those questions in my own business.A blog is a form of online journal that business owners use to develop customer relationships and establish credibility. Blog authors write and post relevant content frequently – daily, every couple of days or weekly.After publishing an ezine for some time, I decided to give up my monthly ezine for a blog. Of course I .