Android/Chrome: PushBullet, the previously mentioned app that can send almost anything from your phone to your PC and vice versa, just took the wraps off of "Notification Mirroring". It's a way to quickly see any alerts from your phone at desktop notifications on your computer.
We've been fans of PushBullet for a while now -- it's super-fast, it's free, and it allows you to send more (and more useful) information between your computer and your Android phone than apps like Chrome to Phone allow. Its new Notification Mirroring feature works the way you may expect -- as soon as a notification pops up on your phone, you'll also see it as an alert on your computer, using Chrome's desktop notifications. Text messages, emails, even phone calls all pop up on your PC. You can look them over, see a preview, and even dismiss them right on your computer through PushBullet -- which then dismisses the notification on your phone as well. You also have the option of mirroring notifications only from apps you want to see, so you're not bombarded with alerts that annoy you.
There are a couple of caveats though. All users, Chrome and Firefox (yes, there's a Firefox extension too!), paired with phones running Android 4.0 and higher, will be able to see notifications. To be able to dismiss them or customise which apps mirror and which don't, your phone needs to be Android 4.3+, and you have to be using Chrome.
All in all, it's a fast and easy way to see and manage the notifications on your phone from your computer, without installing a heavier app like AirDroid or SnapPea (both of whichare useful in their own right) instead. Hit the links below to give PushBullet a try -- existing users will get the new feature when the app (and the corresponding browser extension) updates.