There are two “cloud” services that I live by now:

• Dropbox – simple, replicated, multi-platform file hosting.  Does one thing, and does it *really* well.
• Remember the Milk – online task management, with ability to share task lists.

Accessing these services from my Linux, Apple, and Windows PCs, *plus* my Android phone, really proves the power of the cloud, but even more proves the power of the small, innovative company.  Simple service, simple business model, incredible functionality.

I just wish these services were available for on-site installation, so I could keep my head out of the clouds…