Is it necessary to register a domain for using adsense !

For example I have a site and I want to upload it
to a free hosting service say http://my_name.host_name.com

Will there be any effect on the traffic that I get to this site !

What are the advantages and disadvantages with this sort of hosting when one is using google adsense with this site!

 

You can use adsense in any kind of site regardless being a blogger/worldpress blog account, a normal site or a free site.
Just make sure the site content isent against the terms of service of adsense.

Of course you ´ll have much more traffic if you site about "dog´s" is www.dogs.com rather than "www.freesites.com/free_hosting/121325/index.html" but adsense speaking it wont be a problem as long.

 

So it is ok to start with a free host without a domain name and if it works well then buy a domain name that suits the site contents

 

yeah, sure, no problem at all.
Just DO NOT FORGET to pay attention to the terms of service of adsense.

 

Is it possible to submit my site url to directories despite the fact that it has no domain name

 

As long as your site is online yeah you can

 

u can, but y u r wasting time in doing SEO for others site?

free domains are just subdomains, u don't know when they stop this service r change their service terms.

I suggest u buy ur own domain and then submit it to directories

 

If you want to save moeny
first save your hosting fee.
domain is necessary