[mindcrime]

Fedora Linux

Firefox, Chrome, Chromium, Konqueror, Links

Eclipse

GitHub

Rackspace Cloud / Linode (we'll be moving everything to Linode eventually... the Rackspace thing is a legacy of their Slicehost acquisition)

SugarCRM (self-hosted)

Mediawiki (self-hosted)

Bugzilla (self-hosted)

Hoovers.com

LinkedIn

Google Apps (mainly GMail)

Apache httpd

and some internal tools we developed ourselves, like our competitive intelligence tracker, codenamed FUCIT (Fogbeam Universal Competitive Intelligence Tool) and a product dashboard tool I'm working on now.

Groovy/Grails/JVM

Emacs

OpenOffice