You don't need vast computing skill for this task - almost anyone can set up a mailing list to distribute newsletters via email. There are many commercial services available - as well as free, advertising supported, services. If you're starting a newsletter, I suggest using a free service at the beginning, and then moving to commercial services as the circulation of your newsletter grows. These services are very easy to use, and are popular even with experienced newsletter publishers. Of course, email isn't the only way to publish a newsletter.
Many publishers choose to use both email and web distribution for newsletter publication.
By placing archives of your newsletters on your website, readers can still access the newsletter without subscribing via email. Publishing a newsletter electronically need not be a complex task. With a little planning and investigation, you can easily distribute the newsletter via email and your website. Newsletters help to keep visitors coming back, and to promote your website. Anyone can publish a newsletter, on any topic.