The most widespread internet-based method for informing people of services and events is the opt-in electronic mailing. You might use special services that will help you sign up new participants, or special programs that you would have to configure yourself. It all essentially boils down to publishing an opt-in form on the most visible part of your website where people enter their first name and e-mail address and are then promised a ton of interesting and beneficial information that they otherwise would not be able to obtain. Websites often consist of literally a single page that uses the most diverse tricks and spares no effort or expense to get the visitor to enter his e-mail address and be put on the list for mailings that are potentially of interest to him.
For example, a person might be promised new methods for exiting the body as well as free books that he wouldn’t find anywhere else. The result is that the subscriber indeed receives everything promised to him in e-mails that come at regular intervals, be they every few days or months. Meanwhile, there is always an in-passing mention of an invitation to use some service, visit some seminar or webinar, or obtain some product. With a long-enough mailing list, this might bring you some pretty good results. It’s not for nothing that this system is quite widespread worldwide, and especially in the distance-learning and educational-materials industries. It is always recommended to conduct mailings of this sort in one way or another. To keep such mailings legal, subscribers should opt-in themselves and have the ability to opt-out at any time.
Many resort to illegal mailings by simply paying for the service of sending out a mass mailing to a list of thousands or even millions of addresses from big cities or other areas. Alternatively, the address list is simply purchased (such offers are easy to find online) and then used to carry out a mailing on one’s own. Advertising in such a way is becoming less effective with each passing year. Moreover, it often angers the addressees of the unauthorized mail. Such mailing lists and services are not all that expensive, which is a testament to how ineffective they are. Mass e-mails don’t even make it to their addressees the majority of the time, and that’s even if the addresses are up-to-date. Such activity is illegal and is thus not recommended.