Earn money from unused domains are now possible. If you have some unused domain names, monetize them by parking it on sedo, worlds largest parking provider. Parking blogs are also allowed. So that just make a lot of free blogger blogs and park them on sedo. parking the domain with sedo is the art of monetize the natural traffic of a domain name. If your website or blog name is high qualified, you can earn a lot. For example game.com gets lots of natural traffic while domains like sort513.com gets low or no natural traffic.
So make a free account in sedo and start earning by just parking your unused domains or parking blogger blogs. Sedo will pay about 24$ per 1000 impressions. so if all your websites and blogs together get at least 1000 hits daily, you will earn about 24$ per day, with out any investment. You can park as many domains you like, there is no any limit on number of domains. So make an account on sedo and create a lot of blogger blogs, and park these blogs on sedo. By this you can make money even you are in sleep.