Doo.net is a new service that organizes all of your documents from your hard drive and cloud services (including email) into on system. You can search your documents via keyword, date, optical character recognition, tags, and document type. It will keep all of your device and documents in sync also.
It is available for OS X, with Windows 8, iOS, Android apps and Google Docs integration all coming soon.
The free version will sync and collect 2,000 documents. You can upgrade to paid accounts for more space.
This promises to be a great tool for collecting and organizing all of your documents, no matter where you have them. Teachers, students, schools, and business could all find this useful.
Lots of great, free, cloud file sync/backup/storage/share services
Joukuu - manage your cloud based files