Barter is the process of trading in which products, goods or services are exchanged for other products, goods or services. It is a just a simple method of transaction, it is that method in which no money is exchanged. The traders use barter systems between nations, and sometimes between a nation and a corporation.

Barter trading also takes place between corporations or companies and other businesses, and sometimes it may also occur between a business and an individual, or two individuals. In the United States, through bartering, each year billions of dollars worth of goods and services are exchanged.
Counter-Trade
Barter, which is also known as counter-trade, is an accepted practice by which trading becomes more more convenient for nations that face difficulty with currency conversion, as well as for those nations that have fewer financial resources but sufficient commodities.
For example, if plenty of rice is produced by a country, than that country may exchange it with another nation to acquire another type of grain, or fruits and vegetables. On the contrary, one country might exchange foodstuffs with textiles or oil from other country.
Business-to-Business Barter

Business-to-business barter often includes advertising in exchange for merchandise or services. For instance a company may supply promotional items or a service for a TV, radio station or newspaper, and in return they will receive a set amount of airtime or a certain number of print ads. Other examples of barter trading include trading advice for goods, or trading merchandise or services for stock.
Business to Consumer Barter
Business to consumer barter may include things like free merchandise for a customer who has accepted that he will provide sales leads. In person to person barter almost anything can be included that you can imagine. Auction sites are a good place to find those people who are willing to trade for things that you have. Another handy way of conducting barter transactions are classified ads, online or in print, and so are barter clubs.
Barter Clubs
By barter clubs, including online clubs, resources for businesses as well as individuals are offered. Bartering is made simple and convenient by them, but be aware that most clubs are for-profit businesses. You must have to make sure that the dues, fees or requirements are not so demanding as to defeat the purpose of bartering.
Although it looks like bartering is a great way to save money, or to avoid paying taxes, bartered goods and even most services are considered as revenue and therefore the trader must have to report them in the year in which they are obtained. You can consult with an accountant or the IRS for more information regarding how bartered goods are taxed.

Thank you for the interesting article! I am happy to see that more people and media (finally) paying attention to bartering, to save and to be green. I am a long time barterer. I recommend http://www.barterquest.com where you can swap everything from goods, services, real estate. The site is like no other sites and it gets better every time I return.