I sold one of my LAs by joining and posting it in the for sale section of the APQS forum and it wasn't an APQS. There was no charge for this.
Another highly visible place besides the longarmuniversity is House of Hanson (link below)
http://www.houseofhanson.com/formerlyowned.html
Also, I found it much easier to establish a new email address to use in the online ads. It also meant any mail coming there was an inquiry on the machine. Just a thought. I used a yahoo one.