Highest Interest Stocks

What can you tell me about high interest accounts?
and where else can I learn more about them?
Why would anyone choose to play in the Stock Market over the safe & sure bet of putting your savings into a high interest account @12% APY?
the interest rates are that high because the risk is high.
DO NOT PUT ALL YOUR SAVINGS INTO 12% RETURN BONDS/DEPOSITS
Investing & Retirement Funds : How to Find the Highest CD Interest Rates