Microsoft has been quietly making SkyDrive easier to use. If you have a Windows Live ID, then you automatically get 25GB of free storage courtesy of Microsoft. If you don’t have a backup system on your computers, this is perfect for that. In addition to back-up, you can easily share documents, photos and videos with any one or group. You can instantly publish anything to your social media circles or on your website.
To get to your SkyDrive, simply sign in using your Live ID – go to http://skydrive.com and sign in.
Right-click to share Office docs from SkyDrive
Share your Office docs on social networks
Share an Office doc with everyone
Embed your Office doc in your blog or website
there’s also a video here