A place to exchange your books with other members, Bookins says that they have “more available books than the largest Barnes & Noble.” Best of all, there are no membership charges or fees to speak of. Bookins arranges all the trades for its users, so members never have to contact each other at all to set up swaps. Sending items is free of charge, while receiving an item costs $4.49.
With over 40,000 listings in 142 countries, HomeExchange lists free places to stay almost everywhere in the world. Members pay just $9.95 per month to trade their homes and apartments with each other. After the monthly fee, your vacation lodging expenses won’t cost any more staying at home would. You’ll get to stay in a new place, while someone else comes to stay in your home, both free of charge.
mid-15c., apparently from Old French barater "to barter, cheat, deceive, haggle" (also, "to have sexual intercourse"), 12c., of uncertain origin, perhaps from a Celtic language (cf. Irish brath "treachery"). Connection between "trading" and "cheating" exists in several languages. Related: Bartered; bartering. The noun is first recorded 1590s, from the verb.
In his analysis of barter between coastal and inland villages in the Trobriand Islands, Keith Hart highlighted the difference between highly ceremonial gift exchange between community leaders, and the barter that occurs between individual households. The haggling that takes place between strangers is possible because of the larger temporary political order established by the gift exchanges of leaders. From this he concludes that barter is "an atomized interaction predicated upon the presence of society" (i.e. that social order established by gift exchange), and not typical between complete strangers.