Now that Ubuntu One is shutting down we continue to look for other alternatives. There is Grive which syncs your Google Drive files and there is Dropbox... both work fine. Grive is limited and Dropbox is expensive.
There is another option you might consider. Insync is probably the most powerful Google Drive client available. Insync extends Drive's web functionality to your desktop by integrating tightly with Windows, Mac and Linux so you can get work done. Pricing is very affordable. Best yet you can try it out for free for 15 days. Insync supports a variety of linux distributions. Go to their website to download your appropriate install file. For Ubuntu users you will want the 32 bit or 64 bit DEB.
Here are some Insync features: Linux support, multiple Google accounts, convert Google Docs to Office, built-in sharing without a browser, support for external & network drives, recent changes feed, desktop notifications, right-click share, on-demand shared files syncing, selective sync all folders + files folders you own, name your own folder, revert read-only files, *awesome* support.
Setup is easy. Just install the DEB file and when you start Insync for the first time it will walk you through connecting your Google Drive account. Once installed you will have an Insync indicator on your top panel as seen in the photo above. Clicking it shows you the options available which is far more then what Grive-tools can do.
Checking preferences gives your even more options and you'll be able to see how much space you still have available on your Google Drive.
Insync adds a bright blue folder for your Google Drive(s) and also bookmarks it for you as well making it easy to get to. Insync also features a handy set of icons on top of the folders or files to let you know if they are synced up or still trying to sync. Very similar to how Dropbox shows file and folder status.
If you dont mind using Google products and 15GB of storage space is enough for you, insync is a well designed option. Its better than Ubuntu One and just as nice as Dropbox, but without the heavy price.
I love the multiple account feature, the top panel indicator, and I like the fact you can right click and add any folder on your computer to Insync without having to put the folder into your Google Drive folder. Very cool.
* You can get Insync for free if you share your Insync status on social media like Facebook and Twitter.