Many barter and commerce systems have wish lists and offer lists for their members. I think there is something important missing from this configuration, appreciation portfolio.
An appreciation portfolio is a window into the identity of the person who authors it. It is an effort to show how to send appreciation to someone. Typically, for things they have done that they are not seeking compensation for.
So you would list things you like, make suggestions for specific kinds of appreciations (it could be a ticket to a local concert, or a train ticket to Istanbul, or a funny post card) as well as general information (i am a huge Bruce Cockburn fan, i do winter hiking) and the person viewing the portfolio has easy and less easy ways to express these appreciations.
