One way to make money in this field is by being an expert witness yourself. If you have expertise that could be useful in legal cases, you can market yourself to attorneys to act as an expert witness. Another way to be active in the expert witness field is to play a sort of matchmaker, matching attorneys up with expert witnesses for their cases--either for the defense or for the prosecution. Expert witnesses for big money cases can be expected to fly anywhere to testify. There's no reason your database of witnesses can't be from all parts of the country.
Digital marketing became more sophisticated in the 2000s and the 2010s, when the proliferation of devices' capable of accessing digital media led to sudden growth. Statistics produced in 2012 and 2013 showed that digital marketing was still growing. With the development of social media in the 2000s, such as LinkedIn, Facebook, YouTube and Twitter, consumers became highly dependent on digital electronics in daily lives. Therefore, they expected a seamless user experience across different channels for searching product's information. The change of customer behavior improved the diversification of marketing technology.
Because digital marketing has so many options and strategies associated with it, you can get creative and experiment with a variety of marketing tactics on a budget. With digital marketing, you can also use tools like analytics dashboards to monitor the success and ROI of your campaigns more than you could with a traditional promotional content -- such as a billboard or print ad.