We have found Chapter Three to be a valuable resource in both training and development of custom Drupal functionality. In addition, getting Chapter Three’s help with scaling Drupal has been a real asset.
Jim Nisbet, CTO Highwire Press
I don't know if you've had a chance to see it yet, but we've just launched on Monday the United Nations Global Pulse site at http://UNglobalpulse.org. First and foremost, this site acts as a web presence for the Secretary General's "Voices of the Vulnerable" report on the impacts of vulnerable populations and economic crisis.
The site also uses the OpenLayers module and MapBox tiles to accomplish its second goal: show these crises and the response of UN teams grouped by different projects (side note: big thanks goes out to Development Seed for their work on MapBox).
Because the report was announced in a general UN meeting that was picked up by the press, the Global Pulse team needed a very scalable server stack that could deploy quickly, so they chose Pantheon. In addition to being able to handle the jumps in traffic, Pantheon includes Apache Solr. The site runs Solr search because it is a great way to allow for a topic, document type & region-related faceted search.

We were really honored to work with the United Nations on such an important project. We'd love for you to explore the site, and let us know what you think. Find us on twitter @Chapter_Three.
We used the 2.0 version of Open Layers (http://drupal.org/project/openlayers).
Paul, Matt & Co.,
Congrats on the site and the project in general, it's a great initiative and very cool to see how you were able to help support the UN. Those maps are gorgeous. ;)
Keep up the good work.
Ian
That's really amazing, is there any plan to do a walk through presentation for any of the locol drupal groups so we what sort of bottlenecks you ran into during a project of this scope. Thanks.
Dustin
Very helpful post about what tools are used here. The site is also aesthetically appealing. The geo-map overlay is very pleasing to use. Certainly this helps any user to quickly wade through the myriad of information explosion out there picking out the important hotspots. Thanks for sharing.
We have found Chapter Three to be a valuable resource in both training and development of custom Drupal functionality. In addition, getting Chapter Three’s help with scaling Drupal has been a real asset.
Jim Nisbet, CTO Highwire Press
Just curious, what drupal openlayers module version are you using on the site?
Good looking site by the way.