Digital Marketing simply refers to any type of advertising or marketing that involves a digital media. For example, Facebook ads, Snapchat ads, SEO, are just a few examples of digital marketing. There are MANY more. While all of the different marketing avenues have the same ultimate goal, get more customers, they all have very different demographics, uses, and marketability.
Trying to handle your company’s digital marketing efforts will be a full time job. Also, not to mention, will be very expensive if you do not know what you are doing. So you can try and do some advertising yourself. Be prepared to spend some money and always be refining your efforts. As in, try to increase your exposure, increase your conversions, while always trying to decrease your spend.