In an interesting little note from LinuxJournal, there's an interview with a member of the Homeland Security division concerning their usage of LAMP.

Q: What prompted you to use LAMP? A: I chose the technology for several reasons. Economically, it was the most feasible solution to perform the task, as it cost next to nothing for the development tools and I could use commodity hardware. Support for the components of LAMP (Linux, Apache, MySQL, PHP) easily are obtained and accessible on the Web via newsgroups, HOWTOs, e-mail lists and user groups.

He goes on to talk about the integration of these technologies with their existing setup, and why they decided to go with PHP. It's a pretty interesting read...

Thanks to PHPKitchen for the link.