Some of our favourites right now: PostgreSQL: Gives us better performance than other open source alternatives, and especially suited for enterprise applications - though we can also integrate Oracle or MySQL on request.

Debian Linux: The most reasonable software licensing model of all the Linux variants. But it's also the little things, attention to details, that makes us Debian fans.

Ruby on rails Convention over configuration inside RoR allows us part of our competitive advantage. We've been working with RoR since early 2006, making us a very experienced RoR house.

Ajax Not a technology, but a collection of technologies. Ajax allows us to produce an efficient and engaging user experience.

Haml & Sass A very simple but useful way of making RoR code more maintainable. That means less bugs!