I am compiling a list of useful tools and websites that you may find helpful . If you know of anymore, please let me know by comments or email.
TCL PING Script
This TCL script will ping each IP address (x.x.x.x) listed twice. Very useful tool
tclsh
foreach i {
x.x.x.x
x.x.x.x
x.x.x.x
} {ping $i repeat 2
}
Internet Resources

I always wanted to see the actual Internet routing table. I connected to the Telus router using telnet and used the command “Show IP BGP”. Good insight to the Internet!!!