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.
Oho Cards - Augmented Reality greeting cards
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Cinemagraph eCard Builder - Send Christmas eCards containing "living photos"
Better Uptime - We call you when your website goes down
Thankbox - Online group card & gift collection for teams. Like passing a card around the office but without the card.