Soonr is a web-based service that takes all your important files to the cloud so that you can access them remotely via a web-browser or your mobile device. Free users have 500 MB of storage. You can download the Soonr software onto your computer and select the folders that you want to keep updated on the cloud. The Soonr agent works on both, a Mac and a PC. They also have an iPhone application in the AppStore (which is also free) for those who want to access their files from the mobile device.
Soonr can also be installed on multiple computers so that you can keep them in the sync and have the files updated on all the computers. Start using Soonr now.