I think that u can make enough money just by having adsense for search once the site becomes popular !
so basicly it is OK to have only onepage site (with good domain) just with adsense for search... Just like this site...
You didn't read the About page, did you... Well, it's not a one page site... but yes, as long as the site was complete with that one page you could, as far as I know, do that. -Michael
Here's another one: http://blackle.com/ I saw blackle a while ago so earthle probably copied it, or its the same person
You can create your own at Google Coop: http://www.google.com/coop You are allowed to do it. Google encourages you to do so. They also have a blog about it: http://googlecustomsearch.blogspot.com With Google Coop you list the URLs that you want indexed and you create your own search engine that searches only those URLs