I've never gotten into online investing so I don't know much about the different platforms. My son is looking to get involved in a small way as part of a class he is taking and I thought I might have fun with it as well. The question is, what are some of the better investment platforms that are low/no cost, allow us to move money freely/frequently, and that don't require a large initial investment?
Willing to admit that I don't know what I don't know here, so any help is appreciated.