No you cannot list your home on Trulia unless it listed on the local MLS - you can get there with a full service broker or a limited service one.
Kevin is right, exposure is critical, the more the better. The only thing that is more important is pricing. A good agent can help you greatly with both.
if you want to try this on your own, suggest you give yourself a set time period, so as not to lose much time, and if you don't succeed, list your home with the best agent you can find.
Good luck to you,
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