Looking for a high yield investment program? Then, there are many options out there which will help you get a high return on your investment. But before putting your money in any of such options, you should know few concepts about such schemes. The first and foremost point is that "there is no such thing as a free lunch in this world".Another important concept is credibility of the scheme. Never ever put your money in a scheme or in a company without checking its credibility and legitimacy of its operations.