he Chromium developers have been working on extensions sync for some time, but this feature only became functional today. However, it is not available by default for now so you must manually enable it.

A recent message on the Ubuntu One mailing list announces that Canonical has teamed up with Funambol, an established software stack that synchronizes thousands of mobile phones and other devices who have built a community around different client plugins, virtually supporting the majority of the existing software on all platforms that have contacts (Thunderbird, Outlook, Mac OS X Mail, etc

Grsync is an open source rsync GUI (Graphical User Interface) which you can use for file and directory synchronization (for backups, etc.). Grsync 1.1.0 was released 2 days ago and it adds some small new features as well as some bugs fixed:

There is an ongoing discussion on a Gnome mailing list which points out that Gnome and KDE might collaborate for a new project: a FLOSS alternative to Dropbox.

One annoying thing about Dropbox is that there is no option to share a whole folder from your Public directory so you must manually copy the link for each file you want to share. For this reason KosciaK created a python script called Dropbox-Index which creates an index.html with all the files in a certain folder

Why would you need this? Let me tell you for what I'm using it: on my work computer, most of the ports are blocked, meaning I cannot use a Bittorrent client. I can, however, use a remote Bittorrent client, and then I use the steps described in this article to synchronize the remote Bittorrent download folder with a local folder.

Grsync is an open source rsync GUI (Graphical User Interface) which works on Windows, Linux and Mac OS X. Rsync is the well-known and powerful command line directory and file synchronization tool.

You can use it for easily data backup alongside Dropbox.

Tonido is an extensible personal web application platform (I guess you could call it a "home server" or your own personal 'cloud'), that offers an set of rich and powerful browser based applications. The files are hosted on your computer and you (or somebody else if you allow it) can access them remotely, through these web apps.

We already covered SpiderOak, but only on a quick test, because back then, I didn't see the need for another tool like Dropbox. Read on to see why Dropbox might actually not be enough!

Dropbox is probably the most popular cross-platform service for file sharing, synchronizing and backup. It's biggest drawback is the fact that you cannot synchronize files outside your "Dropbox" folder. Out of the box, that is, because this is actually easily achievable.

SynchroRep is an intuitive applications which allows you to easily synchronize two folders. This is usefull principaly for nomads who work with a laptop or usb key but may interest also users who want making differencial backup to gain time.

Canonical announced yesterday a new Synchronization service for Ubuntu machines. The new tool is called Ubuntu One and it will allow Ubuntu users to synchronize files between multiple computers via the internet and also share files using it's web interface or work remotely with those computers.

If you work some of the time on your laptop and some of the time on your desktop box, making sure that your work is updated on both machines is a must. Many tools can help you accomplish this, from command-line tools such as scp and rsync to generic graphical applications like Konqueror or Krusader, to more specific tools like Unison. Komparator and KDiff3, a couple of KDE applications with interesting features, may offer better ways of syncing your work.