A freelancer or (freelance worker) is a self-employed person working in a profession or trade in which full-time employment is also common. Freelancing refers to the process of offering your services for someone else on a per project basis. The best way to explain this is through an example.
Suppose you have excellent writing skills. There are thousands of webmasters and internet marketers out there who are in need of fresh content and new products on a daily basis.
It may those webmasters  have enough writing skill but they won’t have enough time . Hence, they resort to outsourcing.

And it is a blessing for you to enter that profession & opportunity to earn tons of money.

So they will give you some projects & after completion You will be paid as per agreement of project. and once that’s done successfully , you will be offered more projects& more clients for consistent earnings.

Fields where freelancing is especially common:

• journalism and other forms of writing
•  computer programming and graphic creation & design
•  web creation, design & development
•  software development & Technology
•  data encoding
•  translation to specific languages
• marketing consultancy
•  strategic placement consultancy
• Business Strategy
• Training & Development
• Legal
• Accounting & Finance
• Engineering & Design
• Administrative Support   and many other professional and creative services.
  
  If you want to dabble in freelancing, here are some splendid places where you could advertise your services and solicit some clients:
  
   

  http://www.getafreelancer.com            www.elance.com eLance   http://www.rentacoder.com

  www.scriptlance.com   www.guru.com  http://contractedwork.com http://it-globalized.com/