Gnoosic - Even if you don't know what you are looking for - gnod will find it.
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.
Musicroamer - A visual Pandora for discovering new music
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
TasteDive - TasteDive recommends similar music (musicians, bands), movies, TV shows, books, authors and games, based on what you like.
Better Uptime - We call you when your website goes down