Six Scaling Server Set-Ups
Stuart Herbert has posted six ways to group and organise your web servers. He starts small with simple shared hosting and scales upward to web farms, clusters and n-Tier architectures. (Stuart is a PHP-guy but his server advice is platform and language agnostic.)
It’s a good overview for anyone who’s thinking that they are outgrowing their current server set up and wondering what options they should consider. If nothing else it should give you the language you need to go off and do more research on your own.
It’s also a good read if you aren’t outgrowing your server, but want to design applications smartly, so that they could scale if necessary.
