Toby - Better Than Bookmarks
Hyperping - Cheap uptime and performance monitoring with detailed reporting and flexible alerting
Toast - Built to make restaurants better. Toast gives your restaurant the technology you need to succeed in today's fast-paced environment.
Curler - Dead Simple Free Uptime Monitoring
across-tabs - Easily communicate among browser tabs
Snooze Tabby - A simple way to snooze your tabs for later