Each of those tactics requires different tools when it comes to creation of the source email, dissemination to specific recipients, and integration with other back-end systems, notably the accounting system, the customer relationship management (CRM) system, and possibly even the inventory management system. You can manage your contacts by simply keeping a list of names and email addresses, or you can create a complex database full of subscribers segmented by demographic slices and engagement levels. Which method you choose really just depends on how much of your budget you're willing to allocate toward the email marketing software that can give your company the features it needs.
Another type of electronic mailing list is a discussion list, in which any subscriber may post. On a discussion list, a subscriber uses the mailing list to send messages to all the other subscribers, who may answer in similar fashion. Thus, actual discussion and information exchanges can happen. Mailing lists of this type are usually topic-oriented (for example, politics, scientific discussion, health problems, joke contests), and the topic may range from extremely narrow to "whatever you think could interest us". In this they are similar to Usenet newsgroups, another form of discussion group that may have an aversion to off-topic messages.
While email marketing ROI is higher than that of social media, you’d be remiss if you’re not combining both. While keeping your brand top of mind is an obvious benefit of using email and social, the crucial data you can derive from both enables you to hyper-personalize your messaging and content. This makes integrating both an integral part of your social media strategy and vice versa.