There are only some pretty basic rules for this section.
1) Limit to 1 thread per person for all WTB/WTS/WTT
2) Keep your thread organized and updated -- no one wants to read through a huge wall-of-text that takes an hour to decipher, make a list and keep it short and to the point. If you sell something, take it off of your list.
3) Do NOT start bidding wars on someone's thread -- any drama resulting from the use of this section will be dealt with swiftly and harshly