Salesforce Chatter will completely transform the way you collaborate with people in your company.* As both a collaboration application and a platform for building social cloud-computing apps, Chatter helps you connect and share information securely like never before-all in real time. Welcome to the new world of collaboration for the enterprise.
Collaborate in the cloud
True collaboration is more than just file sharing. It's about processing information and ideas together into a plan. Mindjet Connect uses the power of collaboration to unite the vision with day-to-day work.
Turn Your Computer Into a Personal Cloud
Access your files from any connected device
Share files, photos, music, movies and more
Add terabytes to your smart phone or tablet
Actually, I stumbled upon this when I decided to try out Office 2010 beta. I haven't found any official documentation about how to connect to Windows Live SkyDrive with WebDAV (or any API), so I'm not sure how well supported this will be in the future. If you find any word about this from Microsoft, please let me know in the comments. The good news is that it works. The bad news is that it is very slow, but being 25 GB for free I guess you get what you pay for speed-wise (understandably).
With the new feature, users of its cloud storage service, Google Drive can now sync files while in offline mode on Chrome browser without the fear of internet connection disruption.
A New Way to Connect
We build communities with shared interests from your network. Our interactive clouds help you find and read relevant Twitter conversations with those communities.
"Peer-to-peer encrypted messaging and forums
Messages are stored securely on your device, not in the cloud
Connect directly with nearby contacts - no Internet access required Free and open source software"