Some projects that use Mercurial
The following are some of the projects which are using ["Mercurial"] as their primary ["SCM"] system.
[http://selenic.com/hg Mercurial] (of course!)
[http://weblogs.mozillazine.org/preed/2007/04/version_control_system_shootou_1.html Mozilla], http://hg.mozilla.org
[http://adminton.wald.intevation.org/ Adminton (アドミントン)] contains a ton of useful things for admins, e.g. the Logbuch tools.
[http://hg-mirror.alsa-project.org/ ALSA] - the Advanced Linux Sound Architecture project
[http://aptitude.sourceforge.net/ Aptitude] - A highly configurable console front-end for Debian APT
[http://www.sha-bang.de/index.php?page=12_eso Argh!] - an esoteric programming language.
[http://audacious-media-player.org Audacious] - free, small and powerful audio player for *nix, xmms/bmp fork
[http://ozlabs.org/~rusty/ccontrol Ccontrol] - a utility for taming compiler versions, distcc, ccache etc.
[http://pdos.csail.mit.edu/chord/ Chord/DHash] - project to build scalable, robust distributed systems using peer-to-peer ideas.
[http://hg.rpath.com/ Conary] - distributed software management system for Linux distributions developed by rPath
[http://hg.dovecot.org/ Dovecot] - secure IMAP and POP3 server.
[http://thunk.org/hg/e2fsprogs e2fsprogs] - utilities for managing the Linux ext2 and ext3 filesystems
[http://www.fenics.org/hg/ FEniCS] - free software for the Automation of Computational Mathematical Modeling (ACMM)
[http://hannibal.lr-s.tudelft.nl/fusesmb/hg/ FuseSMB] - Mount your "Network Neighborhood" Link broken as per 2007-03-27!
[http://www.galaxymage.org GalaxyMage] - the open-source tactical RPG
[http://ushare.geexbox.org/ GeeXboX uShare] - A free UPnP A/V Media Server for Linux
[http://hg.gjallar.se/ Gjallar] - Easy to use, customizable and advanced web based issue tracker written in Smalltalk.
[http://globulation2.org/ Globulation 2] ([http://hg.globulation2.org/ repository]) - innovative state-of-the-art Real Time Strategy (RTS) game
[http://gquilt.sourceforge.net/hg/gquilt/ gquilt] - A GUI wrapper around quilt and Mercurials mq extension.
[http://hg.grml.org/ grml] - Linux Live-CD for sysadmins / texttool-users / geeks
[http://www.h-e-r-e-t-i-x.org/ Heretix] - a young GNU/Linux distribution managed entirely by heretix, a Ruby script
- Intel's ACPI team is using ["Mercurial"] for Linux kernel development
[http://lguest.ozlabs.org/ Lguest] ([http://lguest.ozlabs.org/patches/ repository]) - The Simple x86 Hypervisor
[http://www.linux-ha.org/ Linux HA] ([http://hg.linux-ha.org/ repository]) - The High-Availability Linux Project
[http://www.linuxtv.org/hg/ LinuxTV] - V4L (Video for Linux) and DVB (Digital Video Broadcasting)
[http://www.mbdsys.com/repo/ Repositories of MBDSYS] - various projects, e.g. the VOIP Toolkit [http://www.mbdsys.com/opensource/verona/ verona]
[http://www.lilotux.net/~mikael/mcabber/hg/ MCabber] - small Jabber console client for Linux
[http://mooedit.sourceforge.net/index.html medit] - The medit text editor ([http://mooedit.sourceforge.net/hg/moo repository])
[http://hg.microformats.org/ microformats code/tests] is a collection of repositories in use in the [http://www.microformats.org/ microformats community]. See [http://microformats.org/discuss/mail/microformats-dev/2006-March/000070.html using mercurial/hg to share microformats code, tests] of 22 Mar 2006
[http://dirac.cnrs-orleans.fr/hg/MMTK/main MMTK] - the Molecular Modelling Toolkit, a library for molecular simulations
[http://hg.thinkmo.de/ MoinMoin repositories] - [http://moinmoin.wikiwikiweb.de/ MoinMoin] is a wiki engine implemented in Python - you use it right now
[http://control.ee.ethz.ch/~mpt/hg/ MPT] - Matlab toolbox for multi-parametric optimization
[http://dev.mutt.org/hg/mutt The Mutt mail user agent] (with a [http://mutt.sourceforge.net/hg/mutt mirror on sourceforge.net])
[http://notebook.cowgar.com NoteBook.app] - a place to store notes in an organized manner ([http://gnustep.org GNUstep] application)
[http://www.nsnam.org/ nsnam] - ns-3 project, a discrete-event network simulator for Internet systems
[http://www.ntfs-3g.org/ NTFS-3G] - NTFS driver for Linux with read and write support (FUSE driver).
[http://minds.may.ie/~baruch/ NUIM Thesis class] - LaTeX thesis class for the National University of Ireland
[http://opensolaris.org OpenSolaris] selected Mercurial as DSCM of choice for ON consolidation (and possibly other consolidations)
[http://hg.maintech.de OpenTom] a free development environment for TomTom navigation systems ([http://www.opentom.org project wiki])
[http://www.mcs.anl.gov/petsc/ PETSc] - Portable, Extensible Toolkit for Scientific Computation ([http://mercurial.mcs.anl.gov/petsc/ repositories])
[http://hg.lfod.us/repo/py-webcomic py-webcomic repository] - [http://www.lfod.us/sw/py-webcomic/ py-webcomic] is an easily configurable webcomic aggregator
[http://www.quakenet.org/development QuakeNet IRC network] - free IRC server and services
[http://hg.rpm.org rpm.org] - Package manager system for Red Hat, SuSE, and others.
[http://sablecc.org SableCC] - a parser generator which generates fully featured object-oriented frameworks for building compilers, interpreters and other text parsers.
[http://modular.math.washington.edu/sage/ SAGE] - Software for Algebra and Geometry Experimentation
[http://www.secdev.org/projects/scapy/ Scapy] - a powerful interactive packet manipulation program
[http://dirac.cnrs-orleans.fr/hg/ScientificPython/main ScientificPython] - a collection of Python modules for scientific computing
[http://hannibal.lr-s.tudelft.nl/smbcrawler/hg/ SMBCrawler] - command-line utility for listing workgroups, servers and shares Link broken as per 2007-03-27!
[http://www.ivy.fr/tahchee/index.html Tahchee] [http://www.ivy.fr/tahchee/hgweb.cgi repo]- a static website build and management system which extends Cheetah
[http://podgorny.cz/unionfs-fuse unionfs-fuse] - a userspace-based implementation of unionfs ([http://hg.podgorny.cz/unionfs-fuse repository])
[http://podgorny.cz/uptimed uptimed] - a daemon tracking your best uptimes ([http://hg.podgorny.cz/uptimed repository])
[http://virt-manager.et.redhat.com/scmrepo.html Virtual Machine Manager] - desktop application for managing virtual machines.
[http://suckless.org/cgi-bin/hgwebdir.cgi/ wmii, dwm, ...] - [http://wmii.suckless.org/ window manager improved 2], [http://dwm.suckless.org/ dynamic window manager], ...
[http://xenbits.xensource.com/ Xen] - a free hypervisor for virtualising kernels
[http://xinehq.de/ Xine] - a free video player ([http://hg.debian.org/hg/ repositories])
[http://www.wizy.org/mercurial/ ZFS-fuse] [http://www.opensolaris.org/os/community/zfs/ ZFS] file system for linux via fuse ([http://zfs-on-fuse.blogspot.com/ devel blog])
1. Projects with synchronized Mercurial repositories
The following projects have ["Mercurial"] repositories that are synchronized with their primary SCM system. These secondary repositories may not be (and often are not) maintained by the project, and thus generally have no official status.
[http://www.kernel.org/hg/linux-2.6/ The Linux kernel]
[http://hg.serpentine.com/linux/sparse Sparse repo]
[http://chlamydia.fs.ei.tum.de/hg/dragonfly-src hg feed] of [http://www.dragonflybsd.org DragonFly BSD]
[http://hg.fr.freebsd.org/ FreeBSD CVS repos]
[http://hg.intevation.org/emacs/ GNU Emacs]
[http://hg.scode.org/mirror/pkgsrc pkgsrc] ([http://mail-index.netbsd.org/tech-pkg/2006/10/09/0002.html announcement])
[http://hg.estpak.ee Mirrors] of the CVS repositories of the [http://www.xorp.org XORP], [http://www.quagga.net Quagga] and [http://www.openbgpd.org OpenBGPD/OpenOSPFD] routing protocols implementations.
2. Projects that support Mercurial repositories
Here are some tools that can handle Mercurial repositories as a backend.
[http://meld.sourceforge.net/ Meld] - diff viewer
[http://projects.edgewall.com/trac/wiki/TracMercurial The Mercurial plugin] for [http://projects.edgewall.com/trac/ Trac] - issue tracking system
[http://www.vectrace.com/mercurialeclipse Mercurial Plugin] for [http://www.eclipse.org Eclipse] Can be used to handle your repositories from inside the Eclipse IDE
[http://pida.berlios.de/ Pida] - PIDA is an integrated development environment, focused and written in python - you can choose between the included editor and vim (which absolutely rocks). You can use almost all actual (D)VCS from inside it.
[http://alioth.debian.org/ Alioth] (Debian's GForge instance) [http://wiki.debian.org/AliothHg supports Mercurial] and the repositories are accessible via [http://hg.debian.org/ hgweb].
sourceforge, see MercurialOnSourceforge.