Hi,
You have to paste your account, source code, or any valuable text or digital good, choose the price you want, put your bitcoin address and share the link here: https://bitcointalk.org/index.php?board=93.0

Or at any place where you can purpose it for sale.

Same principe as pastebin.com, but insteed to see bin for free, you have to buy it in order to see it.

It's good especially to sell accounts, serials, codes, etc...