What's the target keyword phrase for your business?  Put it into these sites and learn about what people are asking, what gets traction in Google search. Then create....

Digital marketing is a form of marketing that uses digital means to market an idea, concept, product or service. One of its main advantages over traditional marketing is the ease and speed at which you can easily measure the effect of your marketing.

One effective way to market your product or service is to understand what your customer wants and communicate how your solution will be of benefit to the customer. This can be achieved by writing the right content for the right audience.

An article on The Best Research Tools For Finding Kick-Ass Content provides valuable insight on how to develop content topics and measure the effect of your marketing.