These are some of the tools that I use:

Plone
Plone is a powerful, polished and user-friendly content management system. It excels at providing dynamic, content-rich web presence for a community and as an intranet/portal system.

#haml
Haml is based on one primary principle. Markup should be beautiful.
Haml takes your gross, ugly templates and replaces them with veritable Haiku.

Git
Git is a free & open source, distributed version control system designed to handle everything from small to very large projects with speed and efficiency.

