A single operated newsletter may be the easiest business ventures to set up:
1) Create an account
2) Import your email list (Paidletter shows you how to grow one)
3) Connect to a payment system (we prefer Stripe) to receive payments.
Readers subscribe monthly or annually, and most publications offer a discount for the annual subscription.
Content Marketing Institute
Founded by Joe Pulizzi, the Content Marketing Institute blog levels-up your marketing strategies by delivering quality content on topics such as visual content and design, social media marketing, SEO, content marketing, marketing strategy, audience building, industry news, marketing team management, distribution, and tracking.
With 180k subscribers, the blog deals with everything related to content, strategy, tips on hiring and more. Joe Pulizzi writes and publishes a post a day, besides other guest posts from professionals. The subscription process is simple and easy-to-do.