There are some other choices.
1. Advertise on the Trade channel (only in cities) and sell directly to another player.
2. Take up Enchanting as a profession and disenchant green or better items you've crafted.
3. Sell to a vendor.
4. Advertise via other means of yelling or other chat channels. (Not recommended, it's considered poor etiquette.)
The first 2 are the best options, IMO, but sometimes 3 is the more convenient choice.