There are URL shortening services that offer the opportunity to earn money by shortening and sharing links. These services typically work by displaying ads or interstitial pages when someone clicks on the shortened link, and you earn a commission based on the number of clicks or views generated.

To earn money with a URL shortening service, you typically need to follow these steps:

1. Sign up: Create an account with a reputable URL shortening service that offers a monetization program. Some popular options include AdFly, Shorte.st, and Linkvertise.

2. Shorten your links: Once you have an account, you can start shortening your links using the provided tools on the platform. Simply enter the original URL and generate a shortened link.

3. Share your shortened links: Start sharing the shortened links across different platforms such as social media, websites, blogs, forums, or any other online channel where you can reach an audience.

4. Earn money: Each time someone clicks on your shortened link, they may be redirected through an ad page before reaching the original destination. You earn money based on the number of ad impressions or clicks generated.

It's important to note that the earnings from URL shortening services can vary significantly depending on factors such as the location of your audience, the type of content you share, and the overall engagement you generate. Additionally, make sure to comply with the terms and conditions of the URL shortening service and avoid spamming or engaging in any unethical practices.

Remember, while it is possible to earn money with URL shorteners, it's essential to consider alternative methods as well and explore other legitimate ways to monetize your online presence.