Become the authority in your subject field by simply creating blog posts or articles for your subject matter. For example, if your website is about selling gluten-free baking, would you want to have recipes or cooking tips on your web page. It will give a new reason for people to visit your website, giving you more authority when it comes to Google.
Here is a 90-day challenge; for the next 90 days creates a blog
If you are serious about getting high Google rankings for your website, blogging is a great and easy way to accomplish this. It also shows Google your site is the authority of information for a given subject. I recommend setting a few hours a week to create blog entries. If you can do this for ninety days, you will start to see positive changes in your website ranking.