Some interesting tidbits emerged during a media day hosted by IBM. The USOpen.org website. Every year since its inception traffic has grown, hitting an all time high in 2007 of over 192 million pageviews generated by 7.3 million visitors.

But the server footprint keeps getting smaller thanks to virtualization. Since 2006, they've reduced the number of servers that keep the site up and running from 60 to just six P6 550 servers spread across three time zones. Additionally, they use historical usage stats to reduce consumption by dialing back the clock speed during anticipated lulls in activity.

And as for the software powering the site:

They are configured with Linux LPARs for Web serving using IBM HTTP Server (US Open.org) and AIX LPARs for WebSphere Application Server (Commenting, Feedback and Player Search), WebSphere Business Integration Message Broker, Cache logging and content distribution servers.

Visit IBM's mini site for more on how they've helped "green" the US Open.

Update: Here are some of the power savings estimates, according to IBM:

Consolidating from nine servers to six servers (since 2006 consolidation has gone from 60 servers to 6 servers) Since 2006, reduction of energy consumption by 23% and cooling demand reduced by 25% With the p6 implementation it is expected that energy consumption will be reduced by 40% and cooling demand reduced by 48% Since 2006, visits to events infrastructure have grown by 26% while the cost per visit has been reduced by 38% during the same period Users have increased by over 20% while the cost/user has been reduced by over 27% during the same period.

Thanks Dan!