A blog is a place where you can express yourself or your business to the world. These started life as personal stories told by an individual. Over the years blogs have morphed into great business communication tools using multimedia (text, images and video). They are a fab way to communicate with your prospective customers as well as keeping in touch with existing customers.
If you start writing a blog then you must commit to writing regularly for it to be of great benefit to your business. Neglected blogs can lead people to believe you are no longer trading.