Since this list was compiled, TD Ameritrade has been incorporated into Charles Schwab. TD Ameritrade is a highly versatile online broker that shines in many areas, from education and research to its platform and technology. All of this make it the best choice for new investors who are learning the ropes. Besides offering the best trading platform for beginners, TD Ameritrade's thinkorswim mobile app is also outstanding. All of the strengths of this online broker's educational and research offerings, products and technology carry over to it, though the more basic TD Ameritrade app is also available, which may appeal to beginners. Rich Educational Resources for Beginners TD Ameritrade's courses feature progress tracking and gamified elements, rewarding progress with points and badges. Topics include more advanced subject matter like technical analysis, income investing and options trading. Given the vast quantity of educational resources that are available, it's...