Contextual advertising gives the opportunity to pay for first position in search engine and appear on thematic resources of partners. Marketing with cost per click strategy provides instant traffic and promotion right now and right here.
This is the most effective tool in Google, because this is fast and controllable way to show your ad on the most visible places for people, who is looking your goods or services. Also, you can raise number of views and clicks, and as a result, the sales percentage will increase. Insofar as you pay only for suitable for you traffic, it will be easy to control budget and return investment.