Hi Roze,

Your domain question doesn't really follow the theme of this thread...

Quickly, one of the benefits of third party/free hosting like Blogger, Squiddo, et all is that not only is the hosting free, but you don't need domain names.

I recommend mixing all available assets, including as many domains/hosting as you can afford, sub domains, sub directories and free third party hosting.

Now back on topic...Drop the domains that aren't doing anything and you can't afford and for each you drop, create 5 third party accounts. Repeat. Repeat. Repeat.

The domains you do keep should become your gold sites.