Do you know you can make money on domains? A lot of people are doing this far too long that some already millions out of it. You can actually buy and sell domain names. The more popular domains are, the more expensive it is. There are sites who are dedicated on domain auctions. People bid on each domain that is available for sale. 

To do it, choose a domain that you think will be popular in the future. Buy it, park it on web hosting site and direct traffic to it. The more popular and the more search engine traffic goes to it, the quicker it will gain in price. Th older the domain is, the higher it is priced.