Distributed databases and other fancy stuff people like Google and Amazon are using to scale.
A whole collection of slideshows about scaling websites
Sam Ruby: Information access patterns
Amazon job description: senior researcher for distributed systems
Hibernate Shards - distributing data across dbs
Megadata - new big data stores
Hadoop - Apache map/reduce
Running Hadoop on Amazons EC2 and S3
A whole collection of slideshows about scaling websites
Sam Ruby: Information access patterns
Amazon job description: senior researcher for distributed systems
Hibernate Shards - distributing data across dbs
Megadata - new big data stores
Hadoop - Apache map/reduce
Running Hadoop on Amazons EC2 and S3