Easy Context Menu - Easy Context menu is a Freeware portable utility that includes useful tweaks for the context menus.
Dropbox - Online Sync and File Sharing
Shell context menu manager - Powerful and lightweight context menu manager for Windows File Explorer.
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.
Link Shell Extension - Link Shell Extension (LSE) provides for the creation of Hardlinks , Junctions , Volume Mountpoints...
Google Drive - Access and sync your files anywhere