Startups List - Collections of the best startups in different places
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.
Fuel Fund - List your startup and get discovered by 1000s of investors
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
MakerLead - Find top 100 open startups with verified monthly revenue
Better Uptime - We call you when your website goes down