Down Services
UPDOWNtoday
IsThisSiteDown.org
Is It Down Right Now?
Site Down
Is it Down?
Uptime Web
DownBlocked
Multiping
PingInfoView
SmokePing
PingPlotter
Fping (open source)
Ping Meter Gadget
Open Nettest
Graphical Ping
Down Services MultipingUPDOWNtoday - UPDOWNTODAY allows you to check whether the website is down or not.
PingInfoView - PingInfoView is a small utility that allows you to easily ping multiple host names and IP addresses, and watch the result in one table.
IsThisSiteDown.org - Free tool to check whether a site is down just for you, or for everyone.
SmokePing - Smokeping is a tool for measuring latency.
Is It Down Right Now? - Network & Admin
PingPlotter - PingPlotter is a troubleshooting tool that helps IT professionals and neophytes identify, diagnose, and resolve network issues.