Freelancing is short term project you need to take from someone and complete it in pre-decided time. Once a project is completed you will be paid and there is no further term with the company. There are many websites where people post projects. Many people are working as freelancer full time. Websites like WorknHire or Freelancer are great places to start.

Brian had found a huge need for web design in the restaurant and food truck space. After getting tired of working with client after client, he decided to turn his service-based business into a product-based one. He made his services more standardized and productized. He eliminated all his client work and created templates and products to serve that market instead. And it’s been going great for him.
If you happen to own a home, apartment, or office space, you have a great source for generating passive income at your fingertips. Peer-to-peer property rental site Airbnb has made it extremely easy for real estate owners to make extra money by renting out their homes to guests for short durations. If you're uncomfortable with such a model, you can also use sites like NestAway to find tenants for your property without having to deal with brokers.

The WBG has taken the lead in developing a set of multi-donor programs to reduce transaction costs, aligning support with the country’s decentralized model, and enhancing the predictability of aid. These instruments allow for large-scale leveraging of International Development Association (IDA) support. Such approaches are used in the Enhancing Shared Prosperity through Equitable Services, the Productive Safety Nets Program 4; the Water Supply, Sanitation, and Hygiene Universal Access Program, the Sustainable Land Management Project II, and the Agricultural Growth Program II.
Most of us think of investment income as just the cash flow we get from bank interest, bonds, share dividends and property rents, some of which comes via a super pension.  But a more complete view is to also consider how growing the value of your investments can add to your spending potential.  This total return approach generates income from both income and growth to optimise spending from your portfolio across all market cycles, aligning cheap and expensive investments to your goals.