You can get as many domain names as you want at dot.tk. Most people are spending money just for a domain name. You can also get free traffic by placing a tiki link to you website. Dot.tk will automatically place advertisements to your website. In exchange, your website will also get advertised on other websites and you will get free traffic. Very simple method and traffic sharing with zero investment. Example my tk link http://onlinejobsnow.tk is http://getpaidonlinejobs.com notice the advertisements? Note: Only TOS for you to own free domains, you must bring a minimum of 25 unique site visitors in 3 months.
Dot.tk will automatically place advertisements to your website. In exchange, your website will also get advertised on other websites and you will get free traffic. For more info. http://sites.google.com/site/webmastersto/home/free-domain-names---unlimitted