It started with a red paperclip
This guy called kyle MacDonald who bartered his way from a small red paperclip to a house through a series of trades. this is very interesting. Who would have thought that he will end up with a big house. If someone would explain me this idea before its success, i would have definitely write that off.
He is also guinness world record holder for most successful Internet trade. Check his blog: http://oneredpaperclip.blogspot.com/