Week starting 20 April 2009
Rank by Speed (seconds)   Rank by Success Rate (percentage)
Rank Target Response Time (seconds) Rank Last Week   Rank Target Success rate (%) Outage Hours Rank Last Week
 1 Ning 0.52      1 Blogger 100.00 0  10
 2 Facebook 0.72  4    1 Classmates 100.00 0  1
 3 MSN Spaces 0.83  5    1 LinkedIn 100.00 0  
 3 Windows Live Spaces 0.83      1 MSN Spaces 100.00 0  4
 5 Plaxo 0.89      1 MyYearbook 100.00 0  
 6 MyYearbook 1.09      1 Ning 100.00 0  
 7 LinkedIn 1.13      1 Plaxo 100.00 0  
 8 Yahoo Groups 1.25  2    1 StumbleUpon 100.00 0  
 9 Delicious 1.34      1 Windows Live Spaces 100.00 0  
  Social Networking Index 1.37      10 Facebook 99.90 0  9
 10 Blogger 1.37  9    10 Flixster 99.90 0  
 11 YouTube 1.39  8    12 Delicious 99.80 0  
 12 Flixster 1.65      12 MySpace 99.80 0  8
 13 MySpace 2.09  3    12 YouTube 99.80 0  6
 14 Tagged 2.40       Social Networking Index 99.71 0  
 15 Classmates 2.46  10    15 Twitter 99.70 0  
 16 StumbleUpon 2.47      16 Tagged 99.40 0  
 17 Bebo 2.85      17 Bebo 99.10 0  
 18 Twitter 2.86      18 Yahoo Groups 98.50 0  11
 19 Digg 3.37      19 Digg 98.40 1