Parking your old and unused domains is a good way to generate yourself some revenues. Sedo offers domain parking service as well as putting up your domains for sale for absolutely free.

If your domains have steady traffics, you might expect steady incomes every month by parking them in Sedo. Minimum payout is €20 and payment is made via Paypal, usually on 12th-15th every month

It’s easy to setup your domain to parked in Sedo. Register a new Sedo account, certify your account by providing your credit card information or via SMS, then you can add your domains. Change your domain name servers to point to:

• NS1.SEDOPARKING.COM
• NS2.SEDOPARKING.COM

I’ve made quite some money from Sedo, they are really reliable.