Selling your work
As a freelance journalist, you will always need to be actively seeking new opportunities and new contacts. You will need to get yourself and your work exposure. When starting out, freelance journalists want to write for the national newspapers and big publications but consider smaller publications. If you start small, you are more likely to be successful in selling your work.
When it comes to finding the right publications you want to contribute to, you will need to know what you want to write, what interests you and what can make you a success. When you have found what you want to write, research all the relevant publications. Then you will need to carry out some further research to find the most relevant person to contact.
You can contact publications directly, or make expose yourself that clients come to you. However, this will only likely happen when you have a notable amount of experience under your belt.
Consider getting yourself on freelance directories, such as Freelance Alliance. For a small fee, you can have a profile featuring your work attracting potential clients.
When you are starting out, you need to focus mostly on building contacts and getting your name out there. You should also try to find publications that you can regularly contribute to which will ease the pressure of having to constantly look for work.
You can also regularly visit sites such as Hold the Front Page and check the jobs section to see if there is a vacancy for a freelance journalist.
More on freelancing as a journalist.