Selling products and services is one of the best ways to make money online. There are multiple ways to selling online, some methods are free, some methods are low cost, and some methods need sizeable investment. For example you can sell on social media platforms, for free. You can sell on ecommerce platforms for a small investment. And to sell from your own website, you need a lot of money. Selling on social media requires a large following, or spending money on ads. To sell on ecommerce sites, you need to internally rank or spend money on ads. To sell from your own website, you need to do SEO and digital marketing.