How to Check If Your Website is Alive - ping service

Trying to jot down the ping service list

1. Just Ping -
ex. http://www.just-ping.com/index.php?vh=http%3A%2F%2Fbhagwatgm.blogspot.com%2F&s=ping%21

ping: bhagwatgm.blogspot.com

 location                  result               min. rrt  avg. rrt  max. rrt 
 Santa Clara, U.S.A.       Okay                     76.0      78.0      79.0 
 Vancouver, Canada         Okay                    107.0     111.4     115.2 
 New York, U.S.A.          Okay                     40.2      42.2      49.9 
 San Francisco, U.S.A.     Okay                     95.9      97.1      98.8 
 Austin2, U.S.A.           Okay                     66.6      67.1      67.7 
 Florida, U.S.A.           Okay                     58.4      66.6     107.9 
 Austin, U.S.A.            Okay                     66.6      67.0      67.6 
 Amsterdam3, Netherlands   Okay                     89.1      91.4      93.8 
 London, United Kingdom    Okay                     85.6      86.6      88.1 
 Amsterdam2, Netherlands   Okay                     89.5      91.5      93.8 
 Munchen, Germany          Okay                    100.1     102.9     105.2 
 Stockholm, Sweden         Okay                    126.5     127.1     129.0 
 Lille, France             Okay                    107.2     109.5     114.3 
 Cologne, Germany          Okay                    100.6     104.9     108.9 
 Paris, France             Okay                     91.6      93.5      94.9 
 Madrid, Spain             Okay                    111.3     112.2     113.2 
 Krakow, Poland            Okay                    124.7     126.7     129.0 
 Amsterdam, Netherlands    Okay                     96.5      97.6      99.5 
 Cagliari, Italy           Okay                    132.0     134.6     138.3 
 Copenhagen, Denmark       Okay                    129.0     129.4     129.7 
 Hong Kong, China          Okay                    212.1     222.4     227.4 
 Sydney, Australia         Okay                    224.6     234.2     258.4 
 Melbourne, Australia      Okay                    237.9     240.2     244.4 
 Porto Alegre, Brazil      Okay                    150.9     151.8     152.8 
 Singapore, Singapore      Okay                    226.7     232.0     250.3 
 Shanghai, China           Packets lost (100%)                                

2.

Web Tools

3. Watch Mouse - This service too has monitoring stations

4. Website Pulse - In addition to Hong Kong and Shanghai, Website Pulse conducts website connectivity test from a computer located in Beijing as well.

5.

I could able to locate these best sites, please add on if i miss something.