Sharesight - Online stock portfolio tracker that automatically tracks prices, dividends, performance and tax.
Estimize - Crowdsourced earnings estimates
AlphaTrackr - AlphaTrackr is an investment portfolio tracking tool for investors.
Fantasy Invest - Daily fantasy sport meets the stock market
wallmine - US stock market today: stock quotes, stock screener, stock charts, insider trading, market news, portfolio tracking, and cryptocurrencies.
Robinhood - Free stock trading service.