Hi...
Another way people make money with parked domains is by selling ad space on them.
There are companies that are willing to pay money to have their links placed on these parked domains, especially if the domain name pertains closely to their niche. In some cases advertising companies will pay by the month to have their links placed on your parked domain, after which you can sell the parked domain for a profit, by advertising it on business for sale sites. This is the primary method of generating funds with parked domains...