Yes Dan said it well. I just listed a property yesterday where the seller tried selling herself. Give me a call If you want to discuss the market for selling your property and possible websites where you can try to sell your property yourself. Best of Luck. 212-6868
Trulia does not accept FSBO's, so you won't be posted here unless you list it with a great local pro.
Top dollar for a home comes from gaining the maximum exposure and having the right skills, knowledge and experience in negotiating and hold the deal together. Reconsider if you really want to sell by owner, a great agent is worth more than their commission, but a bad one or none at all will cost you way more than just a commission. Best of luck however you go.