I was involved with a number of projects at Fisher Communications until last month. Including building a Plone system to be its news sites’ in-house CMS. Our development environment and technology stack were open-source, with only a couple exceptions.
When I worked on our technology roadmap, an early consideration was how to distribute quick (lightweight) intra-team updates. Virtually the entire development team would be within the same building; of those, virtually all would be within one office. The CMS project would eventually reach 10 heads in dev, QA, and operations; plus content creation and advertising traffic control. Other dev or page layout individuals would be on other activities. For all of this, we needed a way to inform each other about daily activities. Daily stand-ups are used for this in a typical XP or Scrum team. (To be fair, stand-ups are used in many different development methodologies, but XP and Scrum have greatly popularized them in the mainstream technical media.)