Last week we saw how to install Sparkleshare in Ubuntu from a PPA. As a reminder:

Sparkleshare is a tool to synchronize your files in the cloud - like Dropbox or SpiderOak - but unlike these, Sparkleshare is open source and allows you to use your own server. Sparkleshare uses GIT so if you delete/modify some files by accident, you can easily revert the changes.