Microsoft Web Activities - Microsoft's new extension bringing timeline to Chrome
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.
Genie History Search - Always find the page you are looking for, like magic.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Ruin My Search History - Ruin your Google search history with a single click
Better Uptime - We call you when your website goes down