Lorwolf Trades (under the sales, trades and giveaways header) is also the depot for sales! Lots of people advertise their wolves there, and it can be a good place to pick up free wolves for new players.
To list them on the Flea Market and let people auto-buy them from your den directly (what the auction house is called on site), head to the banner and hover over Shops, then Flea Market. To the right you'll see another box labeled Sell, then you select Wolves using the drop down menu.
While you don't have many wolves, it will be easy to see who you want to sell. Be warned as your den grows, though, that every wolf you have will always show up there, whether you can actually sell them or not (whether they are wearing clothing, have companions, etc) and the order will be very oddly sorted. When your den gets bigger, it's unfortunately going to get a lot more difficult to sort through, so kinda keep that in mind. ):
If you do list them on the Flea Market, keep in mind that anyone can release a level 1 wolf for 1000 pebbles, so don't list your wolves for less than that-- if you're going to, may as well just release it yourself and get the full amount!
