I recommend few products on this site, that I have used myself. And we provide links to these products in various relevant articles and pages on this website.
These links are called affiliate links or referral links. Basically, if you end up purchasing the products using the link I have shared, I get some commission.
The commission I receive, varies depending upon the service I am promoting.
The great thing about these links is these referrals do not cost any money to you.