The document discusses 5 missed opportunities for business blogging: 1) Not using blogging for search engine optimization by optimizing blog titles and keywords. 2) Not writing effective blog titles that indicate the page content and are relevant to search queries. 3) Not using the language and keywords that customers use in searches. 4) Not publishing enough content regularly to increase recency, frequency and volume of content. 5) Not including clear calls to action in blog posts for readers to take the desired next step.