WebDav (ang. Web-based Distributed Authoring and Versioning) is an extension to HTTP which allows you to work with remote files stored on web servers.
Most popular operation systems have built-in support of WebDav so you can work with those files just as if stored on your local PC.
Many of online storage providers supports has support of WebDav interface.
Here are some of them:
You can sign up for any of them and use it in CloudBuckit!