I need ideas for a domain name for a business. 

The business will sell ad space in spaces not traditionally used for
advertising, for example the entrance barrier at a parking lot or the
flight monitor screens at airports (I just made those examples up, so
don't focus on those). The point of the business is to think
creatively to find new types of ad space.

The main business presence will be its website so it has to be a good
domain name. In fact, I am not after a business name, but the domain
name.

- the .com domain name must be available (no other will do).
- it cannot be a confusable version of an exisiting domain ...if
adspaces.com is taken, then ad-spaces, advertspaces, advertisingspaces
etc are no good to me.
- it has to be in international english (which may be relevant for
some words, eg cant have the word color/colour in it, unless I can
register the domain name for both versions)

Any questions, please ask.

Thanks.