For everything else, there's AirDroid
The list above covers most of the major messaging services, but if you have an app that isn't covered or are just using a generic SMS app on an older Android device try out AirDroid. This Android-specific app lets you get mobile app notifications on your desktop. Since AirDroid 3 you've also been able to mirror rooted devices and a few officially supported devices on the desktop giving you direct access to your phone from your PC.
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