Domain parking is a normal english. As it applies to car parking; so it applies to web address as well. A temporary place to keep your domains and waiting for a potential buyer to negotiate a good price. There are two types of domain parking I know: 1. A static park; the one you can not personally add content of your choice. And 2. the latest dynamic type, where you can add your personal contents and also have plenty of contents for you to select for your parked domains, that can gives your domains the required development, while waiting for a potential buyer to surface. You are the one to negotiate for ad and to place their code on your parked names and enjoy 100% of your income; be it adsense or adbrite, is up to you. Your domains are parked and ranks well on search engines. You can be contacted as the owner of the domain/s for negotiation by any potential buyers, through a contact us form. And enjoy many more benefits.