Microsoft Azure was announced in PDC last October. It is currently under CTP (Community Technical Preview). During this period, you can use their service for free. Do not think that it is for developers only, as an end user, you can actually benefit from it right away. One registration gives you two free Storage accounts, each has 50GB storage and 20GB/day storage bandwidth. Using our Outlook Attachment Manager product, you can use that storage to store your email attachments, all for FREE. Our test indicates that Azure storage works really well.
For each registration, you also get 2000 VM hours. To leverage that, you unfortunately have to sharpen up your developer skills.
Check out the full step-by-step guide for signing up Windows Azure, and enjoy your free storage, complimentary of Microsoft.