SpiderOak provides an easy, secure and consolidated free online backup, sync, sharing, access & storage solution for Windows, Mac OS X, and Linux (Ubuntu, Debian & Fedora) Features that SpiderOak provides includes; * Access all your data in one de-duplicated location * Configurable multi-platform synchronization * Preserve all historical versions & deleted files * Share folders instantly in web ShareRooms w / RSS * Retrieve files from any internet-connected device * Comprehensive 'zero-knowledge' data encryption * 2 GBs Free / $10 per 100 GBs / Unlimited devices