Maarten Manders at SitePoint - Using SVN for Web Development:

"As our web applications grew and more and more developers started working on them, it became obvious that we needed some kind revision control system to manage our code. As CVS is quite dated and Subversion (SVN) introduced some handy features (atomic transactions, Apache piggybacking, more convenient branching/tagging, tons of other improvements), we chose to go with SVN. The big question was: how to use it correctly? After coming up with some more or less weird ideas I think we finally found a decent solution to put a web application into source control."