Via The Daily Grind I just discovered svn-time-lapse-view. This is a little java utility which allows you to analyze a file from a subversion repository and compare revisions. It gives you a side-by-side view with a slider to scroll through the history showing you the modifications to the file between adjacent versions. Very nice!
There have been many times that I have had to (using TortoiseSVN) select 2 adjacent versions, compare revisions, close the window and go to the next 2 to track down where something in the source changed, was removed or added. This tool, created by Jonathan Aquinio, works as a great time saver for that type of analysis.
Jonathan was apparently inspired by a similar feature in Perforce, although I do not have experience with that tool. Bravo for creating this one!