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.
Detour - Immersive audio walks, now in 17 cities
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Urban Walks - A nicer way to explore New-York
Better Uptime - We call you when your website goes down
yapQ - Turn your smartphone into an audio tour guide