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.
Stop lugging around old books you won’t read again and trade them for some new reading material instead. Bookmooch uses a points system, so you’ll enter the books you want to give away, get requests from members who want your books, ship from home, get points, and then spend the points on the books you need. While membership is free, you’ll receive .10 points for every book you make available and 1 point for every book you successfully give away. To remain in good standing, you need to give away one book for every two you receive.
In a small economy where individuals specialize in trades, they may find the process of setting up a centralized currency and maintaining it an unnecessary burden in order to trade. One option may be to use a commodity to exchange value between parties that want to trade goods or services and this is why gold and silver have been useful forms of currency in many cultures and times. Another option may be to use a barter system to trade.