Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Sharesight - Online stock portfolio tracker that automatically tracks prices, dividends, performance and tax.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
wallmine - US stock market today: stock quotes, stock screener, stock charts, insider trading, market news, portfolio tracking, and cryptocurrencies.
Better Uptime - We call you when your website goes down
Yahoo! Finance - At Yahoo Finance, you get free stock quotes, up-to-date news, portfolio management resources, international market data, social interaction and mortgage rates that help you manage your financial life.