CellSend - CellSend is a free service for sharing texts, links and pictures across all your devices.
DeskCon - DeskCon integrates your Android Device in the Desktop.
Pushbullet - Pushbullet - Your devices working better together
Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
Tresorit Send - Ultra-secure, end-to-end encrypted large file sharing.
Mobizen - Use your Android from a web browser or desktop.