Network: Diagnostics and Performance Web Sites

Here are some useful web sites that  may come in handy from time to time to perform some network diagnostics:

• Need a second opinion if a web site is really down?
• http://www.downforeveryoneorjustme.com/
• Do you need an easy way to find out your IP address on the Internet?  
• http://www.whatismyip.com/
• Are you having problems watching YouTube videos, you can check the download speed here?
• http://www.youtube.com/my_speed
• Find out how fast your Internet connection really is, or if your ISP is providing the speed you pay for.
• http://speedtest.net/