Starting a blog is a great way of creating content. By introducing a blog, you have the capacity to add new pages to your website on a regular basis. Each new blog article is a whole new index-able page for the search engine to find and score.
In terms of the length of your blog, the current thinking is that the longer the better and we recommend an absolute minimum of 300 to 400 words and ideally over 1,000 words. The longer blogs create more new words for the search engines to index and also help let the search engines know exactly what the page is about.
It is important to make sure your blog article is focused on a single topic so you rank well in that particular area, rather than badly for a range of topics or keywords. When writing a longer blog make sure your blog is well structured, easy to read and divided into sections.