I had no idea about this. The f*ckers at Freelancer.com does charge a monthly fee to use their service! I have lost a lot of money because I was unaware of this. I looked around forum and it seems like tons of people have fallen for the same scam. Some people also reported having their accounts frozen for no reason.
Stay away from Freelancer.com if you want to keep your money.
So what are the alternatives? Scriptlance.com (which Freelancer.com was the best in my opinion). But now it’s gone and I haven’t really found a good alternative yet.
For smaller tasks, take a look at Microworkers.