Matt Martz gave a presentation on building a high performance WordPress environment using technologies like load balancers, web servers, databases, caching, and data replication. He discussed using Nginx as a load balancer, Apache/Nginx as web servers, MySQL and HyperDB for databases, Memcached for caching, and APC, Xcache, or Batcache for PHP caching. GlusterFS was also mentioned for data replication. Scott Taylor then presented on front end optimization tools for questions and answers.