ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.

Outlook Google Calendar Sync - Offers calendar synchronisation between Outlook and Google, including attendees and reminders.

Air Explorer - Air Explorer is a software to manage all your multiple cloud drives (like Dropbox, Onedrive, Google Drive, Mega, Mediafire, Box, Hidrive, Yandex, Baidu,...) as well as WebDav and FTP connections.

gSyncit - gSyncit Outlook Cloud Synchronizer. Outlook Calendar, Contact, Task, Note Synchronizer supporting Google, Toodledo, Evernote, Informant, iCloud, AOL, Yahoo, Synology, Fruux, Memotoo and CalDav/CardDav services.

ExpanDrive - ExpanDrive is a fast network drive and browser for cloud storage.

EteSync - Secure, end-to-end encrypted and journaled personal information synchronization.