As many of you have noticed (thanks for all the emails), the Spectrum site has been down periodically this week. This has occasionally happened in the past and since then we have had some IT professionals build monitoring devices so that we could understand better the reasons why.
It appears that the Spectrum site has been receiving a significant wave of Denial of Service attacks. We are working to understand the origin of these and to mitigate their future effect.
This is a companion discussion topic for the original entry at http://spectrummagazine.org/node/2712