Email marketing is just as significant as social media engagement. Yet, some enterprises have started to avoid or ignore email marketing. Not only should you invest time and effort on email marketing, you must also build an email list. Many companies buy databases. Instead of buying a database which will really not be quantifiable whether or not every lead is qualified for your products or services, you should build your own email list. Here are three reasons, which are also the benefits, of building your own email list.