A new VCS system, named fossil.
Someone had problem with SVN and huge development teams. Read the story.
Getting started with source control, here are some guidlines for beginners.
If you are working with GIT, following sites could be of interest.
The git reference: http://gitref.org/.
The git user-manual: http://www.kernel.org/pub/software/scm/git/docs/user-manual.html.
I found some guidelines about committing:
Talking about Mercurial, here is a guide on how to branch:
People are using following systems:
IBM Rational ClearCase 2,8%
IBM Rational Team Concert 0,9%
IBM Rational Telelogic Synergy Suite 0,2%
Microsoft Team Foundation Server 0,8%
Microsoft Visual SourceSafe 1,6%
None – I don’t use a source code management system 5,6%
Don’t know 1,4%
Other (specify) 2,9%
Source: Eclipse Community Survey 2010