Week starting 7 September 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 Facebook 0.46  1    1 LinkedIn 100.00 0  13
 2 Ning 0.61  2    1 MyYearbook 100.00 0  7
 3 Plaxo 0.69  3    1 Plaxo 100.00 0  7
 4 Windows Live Spaces 0.84  4    1 Windows Live Spaces 100.00 0  15
 5 MSN Spaces 0.85  4    5 Blogger 99.90 0  1
 6 Delicious 0.98  6    5 Delicious 99.90 0  1
 7 LinkedIn 1.14  7    5 Digg 99.90 0  1
 8 Blogger 1.19  8    5 Facebook 99.90 0  11
 9 Yahoo Groups 1.30  10    5 MSN Spaces 99.90 0  13
  Social Networking Index 1.35      5 MySpace 99.90 0  7
 10 Classmates 1.35  11    11 StumbleUpon 99.80 0  7
 10 MyYearbook 1.35  9    12 Classmates 99.70 0  1
 12 YouTube 1.45  12    12 Flixster 99.70 0  18
 13 Twitter 1.70  13    14 Bebo 99.60 0  17
 14 Bebo 2.01  15    14 Tagged 99.60 0  16
 15 Tagged 2.16  14     Social Networking Index 99.50 0  
 16 MySpace 2.41  16    16 YouTube 99.40 0  1
 17 Flixster 2.86  17    17 Ning 98.70 3  1
 18 StumbleUpon 3.17  18    18 Twitter 98.00 0  11
 19 Digg 4.27  19    19 Yahoo Groups 96.80 2  19