There's no places better than W/2 Grand Exchange for Members or W/1 or W/3 Grand Exchange for Non-Members, there is of course the old fashioned forums.
The GE.
no you can not sell your house on runescape.
There is no particular place to sell it for more money, the only best place to sell it to players is over the Grand Exchange.
The same place where you can buy and sell most things - the Grand Exchange or by an exchange with other players.
in runescape mine clay and sell it at the grand exchange
No, Your RuneScape House is based on your Construction Level.
eBay is a good place to sell cards.
You can sell them to players but there is no shop in runescape that sells or buys tiras.
No.
Place an offer at the Grand Exchange. To sell it quickly, sell it a few percent below the suggested price. Leave your offer, do something else in the meantime, and come back later.
There are multiple places to sell your items in RuneScape. The most obvious and perhaps the best place to sell items depending on your location is the Grand Exchange. The Exchange offers the best buy/sell prices. Another place to sell your items is a general store, which is not the best idea due to its low offer prices. Lastly, players can sell to specialty shops, which only buy certain items but at a much higher price than general stores. An alternative to these stores is to sell them to other players.
A place where lots of people pass by.