This is where you may list items you are selling (or link to items you are selling). Yes, you may post about your store, if you have one, here, too. The majority of these posts should relate to boards on this site.

This is where you may list items that you want to trade for something else. You may also point out offers for trades that exist elsewhere (whether or not you are involved, on or off-site).

This is where you may make offers that are not regular trades, that are not strictly free, and that are not strictly for sale. For instance, you might offer someone free seeds on condition that they catalog a bunch of information, take pictures and give that stuff to you, or you may make an offer where you give free seeds to someone else on condition that they save seeds and ship them back to you.

If you want something for free, you can ask for it here (that doesn't mean you'll get it, but hey, you can ask). You may also ask where to get items for free here, whether or not you actually intend to get them.

This is for when you want to post about an item that you want to buy, and are hoping someone will offer to sell it to you (or they may tell you somewhere where you can buy it). You may also use this if you simply want to know where to buy it (whether or not you intend to buy it).

This is where people list items that they do not have, that they wish to obtain via trading.

This is where people list items that they want, but they want to obtain them in a fashion that doesn't neatly fit into the other want hashtags.

This hashtag is for people's official havelists.