Motif: An online brokerage that lets you invest up to 30 stocks with $10.
Pros: Enjoy the free lunch of diversification. As long as you are reasonably diversified, you will not suffer the wrath of idiosyncrasy. Also, save on commission costs!
Cons: Selling out of favor positions is costly because you have to sell each stock separately.
Conclusion: My favorite brokerage because my returns have improved with diversification! Highly recommend others to join as well.