Free website?

I am looking for a website that gives anyone a dns name in one of the following forms:

www.___________.com
www.___________.ca <- preferred www.___________.net www.___________.org and the ________ is replaced with whatever the user wantsit to be. Also, this site should be able to provide at least 10MB free web site hosting space. I cannot afford to pay for anything. and if it is possible, can you find one that meets the above requirements without any ads? Nzmezero.com only does half of that for me. It only gives me my own domain name and a banner at the bottom.