In the PPC model (Pay-Per-Click), you display your ads optimized for keywords and target audiences in advertising networks. Your customers or guests arrive at your website from the ad. You only pay for the ads when a user actually clicks on the ad (unlike Pay Per View). The cost per click can vary significantly. Depending on the number of your competitors, the season, etc., prices can vary widely. Some advertising networks use a kind of auction system: the highest bidder's ad appears at the top. Costs can range from a few cents to hundreds of euros per click. By precisely formulating your ads (text and image language, etc., including videos), you can effectively manage your investments. You can also conduct A/B tests, which is very helpful. Unlike the commission model, you can quickly respond to market changes while simultaneously building your customer base. A dedicated website is required for this. Your website should reflect your personality, as it only appears authentic that way. Only then does it promote referral business through many popular channels like blogs, guestbooks, newsletters, etc.