There are a number of ways to advertise a rental. You can of course go the traditional route of putting the home with a property management company/agent. They usually charge 10%.
Now if you are wishing to manage this yourself you can of course list the home on such sites as Craigslist, and other third party sites that will allow you to post it. You can take an ad on Postlets.com that will allow you to post a free ad with only 6 or less pictures. The Postlet will also circulate your rental listing to many other sites.
Hope this helps,