Create an account at this Domains forum.
www.namepros.com
They have a system called NP$. It is like a point based system. They give certain NPs for visiting a member site for 20 seconds. They have hundreds of sites. You just have to visit those sites, inturn you get certain NPs. They give Domains[of your choice] in return for NPs earned.
Depending upon TLDs, like .COM for 425 NPs.
Little Maths:
You click everyday 20 sites. You get 25 NPs. So in under 10-15 days you get your domain. Some days you click more, some days less
