I just setup Sparkleshare (http://sparkleshare.org/) this weekend. I wanted something which wasn't Dropbox, and preferably open-source, and while Sparkleshare has a slightly clunky pair mechanism, it works beautifully.
Syncthing looks similar, and LAN sync'ing is a killer feature for those of us in offices with poor bandwidth.
Syncthing looks similar, and LAN sync'ing is a killer feature for those of us in offices with poor bandwidth.