"Every clone of a Mercurial repository can act as a consistent, fully functional repository itself.This is a very useful property of a DVCS; one that you can take advantage of to make development a lot easier, especially for teams that are dispersed in multiple places of the globe..." — Mercu

"There are many services that will host your project's source code, mailing lists and bug trackers. While very few of these services charge for their services, most of them are built on proprietary software. Worse, some of them have started adding adverts for proprietary software in their mailing lists, or refusing projects with certain free software licenses [...] So, what's the alternative?