codesmell.org

via http://stevelosh.com/blog/entry/2009/8/30/a-guide-to-branching-in-mercurial/
it has

Branching with Clones
Branching with Bookmarks

Branching with Named Branches
Branching Anonymously

with a list of

Advantages
Disadvantages
Comparison to git

each.

via OpenOffice.org development switches to Mercurial – GullFOSS.

I’m very pleased to announce, that after five months of piloting, implementation and and testing, we are finally ready to switch OpenOffice.org development to Mercurial (hg) as our SCM (Source Code Management) tool.
Mercurial is a modern and flexible distributed SCM tool with the fast and convenient merging capability [...]