This is the questions novice freelancers have in the back of their mind. Freelance bidding sites have their pros and cons. However, most of the beginners have no other option and they have nothing to lose; thus these websites are a blessing for greenhorns.
In my blog, I have recently added a post titled How to Get the Most Out Of Freelance Bidding Sites. It will not only tell you whether freelance biddings sites are a good pick for you or not, but will also explain how you can get the maximum benefit with a minimum effort.