What are the Benefits for the Buyers and Service providers at freelancing sites?

Freelance sites offer some wonderful opportunities for people all around the world. People seeking jobs get work at these sites where people who need an online employee for a job, get one. We call people seeking jobs as service providers and people posting these jobs are the buyers.
This provides a great opportunity for service providers all around the world to earn some good money while working at home. There are many people who dream to earn money via jobs at home. People who hate to go to office and do work for 5 days in a week. They don't want to work under any Boss.
The comfort of working from home is too much. You don't have to wake up early in the morning and head to the office. Being your own boss is like a dream come true for many people. The bottom line is that freelance sites are providing a platform for people to earn money online.
Now let's talk about the buyer's benefits of outsourcing jobs at freelancing sites. There are many small medium and large firms all around the world. Some can easily afford to hire permanent employees. They can take good care of their employees and they can pay well to them too. On the other hand, some firms have some employees but they face different problems. For example, in many cases, the employees quit jobs because they got a better pay job at some other firm. In this case, the firm owner will need someone to do work. Employees are not available all the time but at freelancing sites, they can hire people in few minutes.
Nowadays, there are firms that have more online workers then permanent employees. At freelance sites, people are willing to work for cheaper rates. So many firms are hiring people online to save money.