Investors looking for maximum dividend income without all the risk should check out these proven high-yield stalwarts.Dividend stocks are an excellent way to generate investment income in retirement, or if you simply like companies that pay shareholders to hold their stock. I mean, what's wrong with that?The higher a dividend stock's yield is, the more income you'll get for your buck. Remember, a company sets the dividend amount, and the market, through the share price, sets the yield. An ultra-high yield c ...