An anonymous reader writes "If you ever searched for Open Source solution for collaboration work on office documents you should have a look at the (quite young) PengYou project. It provides a server side storage along with plugins for OpenOffice and MS-Office. The best is: it just works. Even the OOo integration is realized by packages, there is no need at all to recompile something from source. The website has more information, a first short review can be found here."