If you're looking to build long-term, sustainable wealth, blue chip stocks can form a strong backbone for your portfolio.Blue chip stocks can form a strong foundation for your investment portfolio. These companies offer stability, thanks to their strong business models and competitive advantages that have withstood the test of time.If you're just getting started or looking for quality investments to add to your portfolio, here are four blue chip stocks you can consider purchasing today for $2,000. VisaVisa ...