Media Buying Service in Bellevue, Washington

Media may refer to:

Service may refer to:

Trade involves the transfer of goods or services from one person or entity to another, often in exchange for money. Economists refer to a system or network that allows trade as a market. An early form of trade, barter, saw the direct exchange of goods and services for other goods and services. Barter involves trading things without the use of money. When either bartering party started to involve precious metals, these gained symbolic as well as practical importance.