Robinhood is a relatively young trading platform with free trades. That's right - free trades. They do not charge commissions for placing trades. Actually Ally is among the brokerages that now also offers free trades unlike others that cost about $5-$7 per trade. Simply open an account and start trading with any amount of money. They will also give you a completely free share of stock just for joining. I feel this is a great opportunity for people to learn about investing and how to save money.
https://join.robinhood.com/maxp343