is it possible to view content changes history (author - date) ? We have many users modifying content in our website, and I'd like to know who made each change.
The Revisioning-module is exactly what you are looking for. It keeps revisions of every change and offers you the possibility to moderate the content.
I use it for a few project and I'm very happy with the results!
If you want to see the differences between revisions the diff module would be handy as well.