Hey, I'm wondering how domain selling companys make there own domains. Why can't we make our own domains or can we, I just don't understand. Does anyone else?
The domain selling companies don't create their own domain names the ".com" bit - this is limited by ICANN and it takes a while for everyone to agree for new codes.
If you mean the lower level domain names like "macrumors" then this is on a first come first served basis. Typically the domain name sellers will have a page where you can select your domain name and the top level domain (the ".com" bit) so here in the UK there will be an option to select either ".com", ".co.uk" ".org.uk", etc. Your choice is then checked against existing registered names and if it is free then you can have it - after paying the fee of course