The following is taken from Get Paid University.

You can’t serve everyone with your time. You just can’t. You don’t have enough time. By having a newsletter, you can reach people and they can be circulating it around the world and you’re serving more people. It’s almost free to send an electronic newsletter. If you use mailchimp.com, that’s mailchimp.com – Sarah, maybe you can put that in the chatroom? – then for the first 500 people, they’ll let you use it for free. Now as you start getting up, I recommend you start with professional card solutions and you can find that, I’ll put that in here; getpaidforwhoyouare.com/pcs. Getpaidforwhoyouare.com/pcs, you can go to them directly as well. I became an affiliate for them so I do get extra revenue when people sign up which is one of the things that you can do as well as creating your own product is you’ll other services that you want to promote and you’re going to promote those and share in the revenue. This is the best that I found is the one that I use at getpaidforwhoyouare.com/pcs.