Here is a list of some of the best Free Ping Tools in the Internet
Ping-o-Matic Auto Ping Of 27 Sites
Ping In Auto Ping Of 42 Sites
Feedping Auto Ping Of 154 Sites
Ping4free Auto Ping Of 133 Sites
Ping My Blog Auto Ping Of 68 Sites
Kping Auto Ping Of 60 Sites
Pingates Auto Ping Of 60 Sites
Auto Pinger Auto Ping Of 44 Sites
My Page Rank Auto Ping Of 25 Sites
Total Ping Auto Ping Of 48 Sites
Pingoat Auto Ping Of 50 Sites
Blog Ping Tool Ping Of All Popular Sites
Ping Ninja Ping of All Power Sites